PreTaskPlanner Docs

A pre-task plan identifies the hazards, controls, and required standards for a specific job before work begins — what it is, why it matters, and how it fits with the JHA and AHA.

A Job Hazard Analysis (JHA) breaks a task into steps, identifies the hazards in each step, and assigns a control to each one — what a JHA is, why it matters, and how it's structured.

An Activity Hazard Analysis (AHA) is the structured, per-activity hazard analysis required by EM 385-1-1 on USACE and many federal projects — what it is, what it must contain, and when it applies.

The difference between a Job Hazard Analysis and an Activity Hazard Analysis (AHA vs JHA), plus the JSA — three names for the same hazard analysis, and when each term applies.

How to write a Job Hazard Analysis that holds up in the field — breaking the task into steps, identifying hazards, assigning controls by the hierarchy, and verifying before work begins.

EM 385-1-1 is the U.S. Army Corps of Engineers safety and health manual that governs work on USACE and many federal construction projects — what it is, when it applies, and how it differs from OSHA.

OSHA is the federal agency that sets and enforces workplace safety standards — what OSHA is, and the difference between 29 CFR 1910 (general industry) and 1926 (construction).

An Excavation and Trenching JHA for underground utility work — breaking down the dig step by step, identifying cave-in, utility-strike, and atmospheric hazards, and assigning real, signable controls.

A Working at Height JHA for ladders, scaffolds, and MEWPs — breaking each access method into steps, identifying fall and equipment hazards, and assigning real, signable controls.

A Hot Work JHA for welding, cutting, and grinding — breaking the task into steps, identifying fire, fume, and burn hazards, and assigning real, signable controls including the fire watch and permit.

A Lifting and Rigging JHA for crane and telehandler operations — breaking the lift into steps, identifying load, rigging, and ground hazards, and assigning real, signable controls and a lift plan.

An Electrical Work JHA for energized equipment and temporary power — breaking the task into steps, identifying shock, arc flash, and arc blast hazards, and assigning real, signable controls including LOTO.

A Confined Space Entry JHA for construction and maintenance work — breaking entry into steps, identifying atmospheric, engulfment, and entrapment hazards, and assigning real, signable controls and a permit.

A Concrete Placement JHA for pump truck operations — breaking the pour into steps, identifying line-blockage, boom, and chemical hazards, and assigning real, signable controls for crew and operator.

A Material Handling JHA for manual lifting and moving loads — breaking the task into steps, identifying ergonomic, struck-by, and pinch hazards, and assigning real, signable controls that protect backs and hands.

A Demolition Work JHA for structural removal and debris handling — breaking the job into steps, identifying collapse, falling-debris, and hazardous-material hazards, and assigning real, signable controls.

A Roof Work JHA for edge protection, openings, and fall hazards — breaking the job into steps, identifying leading-edge, hole, and skylight hazards, and assigning real, signable fall-protection controls.

A Scaffold Erection and Dismantling JHA — breaking the build and teardown into steps, identifying fall, collapse, and struck-by hazards, and assigning real, signable controls under a competent person.

A Forklift Operation JHA — breaking the task into steps, identifying tip-over, struck-by, and load hazards, and assigning real, signable controls for operators, pedestrians, and the work zone.

A Scissor Lift Operation JHA — breaking the task into steps, identifying tip-over, fall, and crush hazards, and assigning real, signable controls for the platform, the ground, and overhead clearances.

A Boom Lift Operation JHA — breaking the task into steps, identifying ejection, tip-over, and electrocution hazards, and assigning real, signable controls including harness, anchorage, and a rescue plan.

A Lockout Tagout (LOTO) JHA — breaking energy isolation into steps, identifying stored-energy and unexpected-startup hazards, and assigning real, signable controls for isolation, verification, and release.

A Heavy Equipment Operation JHA — breaking the task into steps, identifying struck-by, rollover, and blind-spot hazards, and assigning real, signable controls for operators, spotters, and ground crews.

A Crane Assembly and Disassembly JHA — breaking assembly/disassembly into steps, identifying collapse, struck-by, and pinch hazards, and assigning real, signable controls under an A/D director.

A Rebar Installation JHA — breaking the task into steps, identifying impalement, fall, and ergonomic hazards, and assigning real, signable controls including rebar caps and impalement protection.

A Formwork Installation JHA — breaking the task into steps, identifying collapse, fall, and struck-by hazards, and assigning real, signable controls for shoring, bracing, and the placement load.

A Formwork Removal JHA — breaking stripping into steps, identifying premature-removal collapse, struck-by, and fall hazards, and assigning real, signable controls tied to concrete strength.

A Steel Erection JHA — breaking the task into steps, identifying fall, struck-by, and structural-stability hazards, and assigning real, signable controls for connectors, decking, and the raising gang.

A Structural Steel Bolt-Up JHA — breaking connection work into steps, identifying fall, pinch, and dropped-object hazards, and assigning real, signable controls for connectors and bolting crews at height.

A Welding Operations JHA — breaking the task into steps, identifying fire, fume, radiation, and electrical hazards, and assigning real, signable controls including ventilation, the fire watch, and PPE.

A Grinding and Abrasive Wheel Operations JHA — breaking the task into steps, identifying wheel-burst, eye-injury, and silica hazards, and assigning real, signable controls for guards, RPM, and PPE.

An HVAC Duct Installation JHA — breaking the task into steps, identifying fall, cut, and overhead-lifting hazards, and assigning real, signable controls for working overhead on lifts and ladders.

A Fire Sprinkler Installation JHA — breaking the task into steps, identifying fall, pipe-handling, and pressure-test hazards, and assigning real, signable controls for overhead piping work.

A Cable Pulling JHA — breaking the task into steps, identifying line-tension, ergonomic, and confined-space hazards, and assigning real, signable controls for pulling cable through conduit and trays.

A Switchgear Installation JHA — breaking the task into steps, identifying rigging, arc-flash, and energization hazards, and assigning real, signable controls for setting and terminating switchgear.

An Underground Utility Installation JHA — breaking the task into steps, identifying cave-in, utility-strike, and atmospheric hazards, and assigning real, signable controls for installing buried utilities.

A Storm Drain Installation JHA — breaking the task into steps, identifying cave-in, heavy-pipe, and confined-space hazards, and assigning real, signable controls for installing storm drainage systems.

A Waterline Installation JHA — breaking the task into steps, identifying cave-in, stored-pressure, and confined-space hazards, and assigning real, signable controls for installing buried pressurized waterlines.

A Mechanical Pipe Installation JHA — breaking the task into steps, identifying rigging, pressure-test, and overhead-work hazards, and assigning real, signable controls for process and mechanical piping.

A Traffic Control and Work Zone Safety JHA — breaking the task into steps, identifying struck-by-traffic, equipment, and flagger hazards, and assigning real, signable controls for work zones.

A Loading and Unloading Materials JHA — breaking the task into steps, identifying struck-by, fall-from-trailer, and load-shift hazards, and assigning real, signable controls for trucks and laydown yards.

A Hand and Power Tool Safety JHA — breaking tool use into steps, identifying laceration, electrical, and struck-by hazards, and assigning real, signable controls for guarding, inspection, and PPE.

A Ladder Safety JHA — breaking ladder use into steps, identifying fall, setup, and overhead-contact hazards, and assigning real, signable controls for selection, the 4-to-1 angle, and three-point contact.

A Suspended Load Operations JHA — breaking the task into steps, identifying dropped-load, struck-by, and swing hazards, and assigning real, signable controls including exclusion zones and tag lines.

A Core Drilling and Concrete Saw Cutting JHA — breaking the task into steps, identifying silica, embedded-utility, and blade hazards, and assigning real, signable controls including wet methods and scanning.

A Glass and Glazing Installation JHA — breaking the task into steps, identifying laceration, heavy-lift, and fall hazards, and assigning real, signable controls for handling and setting glass at height.

A Drywall Installation JHA — breaking the task into steps, identifying lifting, dust, and fall hazards, and assigning real, signable controls for hanging board, sanding compound, and working on stilts and lifts.

A Trench Box and Shoring Installation JHA — breaking installation and removal into steps, identifying cave-in, struck-by, and lifting hazards, and assigning real, signable controls under a competent person.

An Asphalt Paving Operations JHA — breaking the task into steps, identifying burn, struck-by, and fume hazards, and assigning real, signable controls for pavers, rollers, and the paving crew.

A Site Clearing and Grubbing JHA — breaking the task into steps, identifying struck-by, equipment-rollover, and falling-tree hazards, and assigning real, signable controls for clearing crews.

A Utility Locating and Ground Disturbance JHA — breaking the task into steps, identifying utility-strike, electrocution, and explosion hazards, and assigning real, signable controls including locate and potholing.

A Pile Driving Operations JHA — breaking the task into steps, identifying struck-by, rigging, and noise hazards, and assigning real, signable controls for the rig, the leads, and the pile crew.

A Masonry and Block Wall Construction JHA — breaking the task into steps, identifying wall-collapse, silica, and lifting hazards, and assigning real, signable controls including the limited access zone.

A Solar Panel Installation JHA — breaking the task into steps, identifying fall, electrical (DC arc), and lifting hazards, and assigning real, signable controls for rooftop and ground-mount PV work.

A Tank Cleaning and Maintenance JHA — breaking the task into steps, identifying confined-space, atmospheric, and chemical hazards, and assigning real, signable controls for entering and cleaning tanks.

A Pressure Testing (Hydrostatic Testing) JHA — breaking the task into steps, identifying stored-energy, line-of-fire, and pneumatic hazards, and assigning real, signable controls for testing pipe and vessels.

A Portable Generator and Temporary Power JHA — breaking the task into steps, identifying electrocution, carbon monoxide, and backfeed hazards, and assigning real, signable controls for temporary power on site.

A Tower Crane Operations JHA — breaking the task into steps, identifying dropped-load, overload, and struck-by hazards, and assigning real, signable controls for the operator, signal person, and crew.

A Precast Concrete Installation JHA — breaking the task into steps, identifying rigging-failure, crushing, and stability hazards, and assigning real, signable controls for setting heavy precast elements.

A Curtain Wall Installation JHA — breaking the task into steps, identifying fall, dropped-object, and heavy-lifting hazards, and assigning real, signable controls for installing facade units at the building edge.

A Window Installation JHA — breaking the task into steps, identifying fall, dropped-glass, and lifting hazards, and assigning real, signable controls for setting windows at openings and at height.

An Insulation Installation JHA — breaking the task into steps, identifying respiratory, skin-irritant, and fall hazards, and assigning real, signable controls for fiberglass, spray foam, and mineral wool.

A Painting and Coating Operations JHA — breaking the task into steps, identifying solvent-vapor, flammability, and fall hazards, and assigning real, signable controls for spraying and coating work.

A Sandblasting Operations JHA — breaking the task into steps, identifying silica, hose-whip, and respiratory hazards, and assigning real, signable controls including media selection and air-supplied respirators.

A Waterproofing Installation JHA — breaking the task into steps, identifying chemical-exposure, hot-applied, and confined-space hazards, and assigning real, signable controls for membrane and coating waterproofing.

A Sheet Pile Installation JHA — breaking the task into steps, identifying struck-by, rigging, and noise hazards, and assigning real, signable controls for driving and handling sheet piles.

A Battery Energy Storage System (BESS) Installation JHA — breaking the task into steps, identifying thermal-runaway, electrical, and arc-flash hazards, and assigning real, signable controls for installing battery storage.

A Substation Construction JHA — breaking the task into steps, identifying electrocution, arc-flash, and rigging hazards, and assigning real, signable controls for building and energizing substations.

An Earthmoving Operations JHA — breaking the task into steps, identifying struck-by, rollover, and blind-spot hazards, and assigning real, signable controls for dozers, scrapers, and haul trucks.

A Dewatering Operations JHA — breaking the task into steps, identifying electrical, excavation-stability, and discharge hazards, and assigning real, signable controls for pumping and well-point systems.

An Industrial Equipment Installation JHA — breaking the task into steps, identifying rigging, crushing, and stored-energy hazards, and assigning real, signable controls for setting and connecting machinery.

A Machinery Alignment JHA — breaking the task into steps, identifying stored-energy, rotating-equipment, and pinch hazards, and assigning real, signable controls including lockout for alignment work.

An Equipment Commissioning JHA — breaking the task into steps, identifying stored-energy, startup, and first-energization hazards, and assigning real, signable controls for bringing equipment online.

A Refrigeration Piping Installation JHA — breaking the task into steps, identifying refrigerant, brazing, and pressure hazards, and assigning real, signable controls for installing refrigerant piping.

A Chiller Installation JHA — breaking the task into steps, identifying rigging, refrigerant, and electrical hazards, and assigning real, signable controls for setting and connecting chillers.

A Cooling Tower Installation JHA — breaking the task into steps, identifying rigging, fall, and Legionella hazards, and assigning real, signable controls for installing rooftop and ground cooling towers.

A Boiler Installation JHA — breaking the task into steps, identifying rigging, gas/fuel, and pressure hazards, and assigning real, signable controls for installing and commissioning boilers.

A Dock Leveler Installation JHA — breaking the task into steps, identifying stored-energy, crushing, and pit hazards, and assigning real, signable controls for installing loading dock levelers.

An Excavator Attachment Change JHA — breaking the task into steps, identifying crushing, stored-energy, and coupler hazards, and assigning real, signable controls for changing excavator attachments.

A Concrete Coring JHA — breaking the task into steps, identifying silica, embedded-utility, and core-fall hazards, and assigning real, signable controls including scanning and wet coring.

An Epoxy Flooring Installation JHA — breaking the task into steps, identifying chemical-vapor, skin-sensitizer, and slip hazards, and assigning real, signable controls for installing epoxy floor systems.

A Terrazzo Installation JHA — breaking the task into steps, identifying silica, chemical, and ergonomic hazards, and assigning real, signable controls for grinding and pouring terrazzo floors.

A Ceiling Grid Installation JHA — breaking the task into steps, identifying fall, eye-injury, and overhead hazards, and assigning real, signable controls for installing suspended ceiling grid.

A Suspended Ceiling Installation JHA — breaking the task into steps, identifying fall, eye-injury, and overhead-lifting hazards, and assigning real, signable controls for installing suspended ceiling systems.

A Raised Access Floor Installation JHA — breaking the task into steps, identifying trip, fall-into-opening, and lifting hazards, and assigning real, signable controls for installing raised access flooring.

A Cleanroom Construction JHA — breaking the task into steps, identifying chemical, confined-environment, and overhead hazards, and assigning real, signable controls for building controlled-environment cleanrooms.

An Elevator Installation JHA — breaking the task into steps, identifying fall-into-shaft, struck-by, and stored-energy hazards, and assigning real, signable controls for installing elevators in the hoistway.

A Concrete Finishing JHA — breaking the task into steps, identifying chemical-burn, ergonomic, and power-trowel hazards, and assigning real, signable controls for finishing fresh concrete.

A Concrete Curing JHA — breaking the task into steps, identifying chemical, confined-space, and slip hazards, and assigning real, signable controls for curing compounds, water curing, and enclosures.

A Concrete Surface Grinding JHA — breaking the task into steps, identifying silica, electrical, and noise hazards, and assigning real, signable controls including wet grinding and vacuum dust collection.

A Concrete Joint Sealing JHA — breaking the task into steps, identifying chemical, hot-pour, and silica hazards, and assigning real, signable controls for sealing concrete joints.

A Shotcrete Operations JHA — breaking the task into steps, identifying high-pressure, rebound, and silica hazards, and assigning real, signable controls for wet and dry shotcrete application.

A Decorative Concrete Installation JHA — breaking the task into steps, identifying chemical, caustic, and silica hazards, and assigning real, signable controls for stamping, staining, and polishing concrete.

A Concrete Repair JHA — breaking the task into steps, identifying silica, chemical, and structural hazards, and assigning real, signable controls for removing and repairing deteriorated concrete.

An Expansion Joint Installation JHA — breaking the task into steps, identifying silica, chemical, and ergonomic hazards, and assigning real, signable controls for installing expansion joint systems.

A Concrete Surface Preparation JHA — breaking the task into steps, identifying silica, noise, and projectile hazards, and assigning real, signable controls for shot blasting, scarifying, and grinding.

An Epoxy Crack Injection JHA — breaking the task into steps, identifying chemical-sensitizer, high-pressure, and confined-space hazards, and assigning real, signable controls for injecting epoxy into cracks.

A Soil Compaction JHA — breaking the task into steps, identifying struck-by, rollover, and vibration hazards, and assigning real, signable controls for rollers and plate compactors.

A Rock Excavation JHA — breaking the task into steps, identifying flying-rock, struck-by, and silica hazards, and assigning real, signable controls for ripping, hammering, and removing rock.

A Blasting Support Operations JHA — breaking the task into steps, identifying premature-detonation, flyrock, and misfire hazards, and assigning real, signable controls for supporting blasting under a blaster-in-charge.

A Slope Stabilization JHA — breaking the task into steps, identifying rockfall, fall-from-height, and equipment hazards, and assigning real, signable controls for soil nails, anchors, mesh, and shotcrete.

An Erosion Control Installation JHA — breaking the task into steps, identifying slope-fall, equipment, and water hazards, and assigning real, signable controls for blankets, silt fence, and erosion measures.

A Retaining Wall Construction JHA — breaking the task into steps, identifying excavation, lifting, and wall-stability hazards, and assigning real, signable controls for building retaining walls.

A Gabion Wall Installation JHA — breaking the task into steps, identifying manual-handling, cut, and stability hazards, and assigning real, signable controls for filling and building gabion baskets.

A Riprap Installation JHA — breaking the task into steps, identifying struck-by, rolling-rock, and water hazards, and assigning real, signable controls for placing riprap on slopes and channels.

An Embankment Construction JHA — breaking the task into steps, identifying rollover, struck-by, and slope-stability hazards, and assigning real, signable controls for building and compacting embankments.

A Borrow Pit Operations JHA — breaking the task into steps, identifying highwall, equipment, and water hazards, and assigning real, signable controls for excavating borrow material.

A Manhole Installation JHA — breaking the task into steps, identifying excavation, confined-space, and lifting hazards, and assigning real, signable controls for setting manhole structures.

A Catch Basin Installation JHA — breaking the task into steps, identifying excavation, lifting, and traffic hazards, and assigning real, signable controls for installing storm drain catch basins.

A Valve Installation JHA — breaking the task into steps, identifying stored-energy, lifting, and line-break hazards, and assigning real, signable controls for installing valves in piping systems.

A Fire Hydrant Installation JHA — breaking the task into steps, identifying excavation, pressure, and traffic hazards, and assigning real, signable controls for installing fire hydrants and connections.

A Utility Tie-In JHA — breaking the task into steps, identifying stored-energy, line-break, and excavation hazards, and assigning real, signable controls for tying into existing live utilities.

A Sewer Manhole Rehabilitation JHA — breaking the task into steps, identifying confined-space, hydrogen-sulfide, and chemical hazards, and assigning real, signable controls for rehabilitating sewer manholes.

A Lift Station Construction JHA — breaking the task into steps, identifying deep-excavation, confined-space, and electrical hazards, and assigning real, signable controls for building sewage lift stations.

A Pump Station Construction JHA — breaking the task into steps, identifying excavation, electrical, and pump-system hazards, and assigning real, signable controls for building water and process pump stations.

A Duct Bank Installation JHA — breaking the task into steps, identifying excavation, concrete, and lifting hazards, and assigning real, signable controls for installing electrical duct banks.

A Fiber Optic Installation JHA — breaking the task into steps, identifying laser, glass-fiber, and confined-space hazards, and assigning real, signable controls for installing and splicing fiber optic cable.

An Anchor Bolt Installation JHA — breaking the task into steps, identifying silica, chemical-adhesive, and struck-by hazards, and assigning real, signable controls for cast-in and post-installed anchors.

A Structural Grouting JHA — breaking the task into steps, identifying caustic, silica, and chemical hazards, and assigning real, signable controls for grouting base plates, equipment, and structures.

A Base Plate Installation JHA — breaking the task into steps, identifying crushing, alignment, and stability hazards, and assigning real, signable controls for setting structural column base plates.

A Metal Deck Installation JHA — breaking the task into steps, identifying fall-through, cut, and lifting hazards, and assigning real, signable controls for installing metal floor and roof deck.

A Miscellaneous Steel Installation JHA — breaking the task into steps, identifying fall, struck-by, and hot-work hazards, and assigning real, signable controls for installing misc metals and embeds.

A Stair Installation JHA — breaking the task into steps, identifying fall, rigging, and struck-by hazards, and assigning real, signable controls for installing steel and prefabricated stairs.

A Handrail Installation JHA — breaking the task into steps, identifying fall-at-edge, hot-work, and silica hazards, and assigning real, signable controls for installing handrails and guardrails.

An Expansion Joint Cover Installation JHA — breaking the task into steps, identifying fall-through, lifting, and hot-work hazards, and assigning real, signable controls for installing joint cover assemblies.

A Canopy Installation JHA — breaking the task into steps, identifying fall, lifting, and overhead-stability hazards, and assigning real, signable controls for installing canopies and overhead structures.

A Mezzanine Construction JHA — breaking the task into steps, identifying fall, lifting, and structural-stability hazards, and assigning real, signable controls for building elevated mezzanine platforms.

A Ceramic Tile Installation JHA — breaking the task into steps, identifying silica, ergonomic, and chemical hazards, and assigning real, signable controls for installing ceramic and porcelain tile.

A Stone Installation JHA — breaking the task into steps, identifying silica, heavy-lifting, and ergonomic hazards, and assigning real, signable controls for installing natural and engineered stone.

An Acoustical Ceiling Installation JHA — breaking the task into steps, identifying fall, overhead, and material hazards, and assigning real, signable controls for installing acoustical ceilings.

A Vinyl Flooring Installation JHA — breaking the task into steps, identifying adhesive-vapor, ergonomic, and substrate-silica hazards, and assigning real, signable controls for installing vinyl flooring.

A Hardwood Flooring Installation JHA — breaking the task into steps, identifying wood-dust, finish-vapor, and ergonomic hazards, and assigning real, signable controls for installing and finishing hardwood floors.

A Demountable Partition Installation JHA — breaking the task into steps, identifying lifting, glass, and stability hazards, and assigning real, signable controls for installing demountable partition systems.

A Toilet Partition Installation JHA — breaking the task into steps, identifying drilling-silica, lifting, and cut hazards, and assigning real, signable controls for installing toilet partitions.

A Casework Installation JHA — breaking the task into steps, identifying lifting, drilling, and cut hazards, and assigning real, signable controls for installing cabinets and casework.

A Millwork Installation JHA — breaking the task into steps, identifying lifting, tool, and dust hazards, and assigning real, signable controls for installing architectural millwork and trim.

A Countertop Installation JHA — breaking the task into steps, identifying heavy-slab, silica, and pinch hazards, and assigning real, signable controls for installing stone and solid-surface countertops.

An Air Handling Unit Installation JHA — breaking the task into steps, identifying rigging, electrical, and rotating-equipment hazards, and assigning real, signable controls for installing AHUs.

A Cooling Coil Installation JHA — breaking the task into steps, identifying cut, lifting, and refrigerant hazards, and assigning real, signable controls for installing HVAC cooling coils.

An Exhaust Fan Installation JHA — breaking the task into steps, identifying fall, rotating-equipment, and electrical hazards, and assigning real, signable controls for installing exhaust fans.

A Duct Insulation Installation JHA — breaking the task into steps, identifying fiber-irritant, ladder-fall, and adhesive hazards, and assigning real, signable controls for insulating ductwork.

A Steam Piping Installation JHA — breaking the task into steps, identifying burn, stored-energy, and hot-work hazards, and assigning real, signable controls for installing steam piping systems.

A Compressed Air Piping Installation JHA — breaking the task into steps, identifying stored-energy, pressure-release, and material hazards, and assigning real, signable controls for installing compressed air piping.

A Medical Gas Installation JHA — breaking the task into steps, identifying oxygen-fire, brazing, and certification hazards, and assigning real, signable controls for installing medical gas piping.

A Process Piping Installation JHA — breaking the task into steps, identifying hazardous-fluid, pressure, and hot-work hazards, and assigning real, signable controls for installing process piping.

A Pressure Vessel Installation JHA — breaking the task into steps, identifying rigging, stored-energy, and confined-space hazards, and assigning real, signable controls for installing pressure vessels.

An Industrial Pump Installation JHA — breaking the task into steps, identifying rigging, rotating-equipment, and alignment hazards, and assigning real, signable controls for installing industrial pumps.

A Cable Tray Installation JHA — breaking the task into steps, identifying fall, cut, and overhead-load hazards, and assigning real, signable controls for installing electrical cable tray.

A Conduit Installation JHA — breaking the task into steps, identifying cut, ergonomic, and overhead hazards, and assigning real, signable controls for installing electrical conduit.

A Busway Installation JHA — breaking the task into steps, identifying lifting, overhead, and electrical hazards, and assigning real, signable controls for installing electrical busway (bus duct).

A Lighting Fixture Installation JHA — breaking the task into steps, identifying fall, electrical, and overhead hazards, and assigning real, signable controls for installing lighting fixtures.

A Generator Testing JHA — breaking the task into steps, identifying backfeed, exhaust, and fuel hazards, and assigning real, signable controls for testing and commissioning generators.

An Electrical Termination JHA — breaking the task into steps, identifying shock, arc-flash, and energized-work hazards, and assigning real, signable controls for terminating electrical conductors.

A Grounding System Installation JHA — breaking the task into steps, identifying exothermic-weld, excavation, and electrical hazards, and assigning real, signable controls for installing grounding systems.

A Lightning Protection Installation JHA — breaking the task into steps, identifying roof-fall, weather, and bonding hazards, and assigning real, signable controls for installing lightning protection systems.

A UPS Installation JHA — breaking the task into steps, identifying stored-energy, battery, and arc-flash hazards, and assigning real, signable controls for installing uninterruptible power supplies.

A Data Center Electrical Installation JHA — breaking the task into steps, identifying energized-work, arc-flash, and live-environment hazards, and assigning real, signable controls for data center electrical work.

A Site Fencing Installation JHA — breaking the task into steps, identifying post-hole, utility-strike, and manual-handling hazards, and assigning real, signable controls for installing site fencing.

A Guardrail Installation JHA — breaking the task into steps, identifying traffic, post-driving, and manual-handling hazards, and assigning real, signable controls for installing roadway guardrail.

A Bollard Installation JHA — breaking the task into steps, identifying excavation, lifting, and traffic hazards, and assigning real, signable controls for installing bollards and security posts.

A Signage Installation JHA — breaking the task into steps, identifying fall, traffic, and lifting hazards, and assigning real, signable controls for installing signs and signage.

A Playground Installation JHA — breaking the task into steps, identifying manual-handling, excavation, and tool hazards, and assigning real, signable controls for installing playground equipment.

A Landscaping Operations JHA — breaking the task into steps, identifying equipment, chemical, and environmental hazards, and assigning real, signable controls for landscaping work.

An Irrigation System Installation JHA — breaking the task into steps, identifying trenching, utility-strike, and electrical hazards, and assigning real, signable controls for installing irrigation systems.

A Tree Removal JHA — breaking the task into steps, identifying struck-by, chainsaw, and electrical hazards, and assigning real, signable controls for removing and felling trees.

A Chain Link Fence Installation JHA — breaking the task into steps, identifying post-hole, fabric-tensioning, and cut hazards, and assigning real, signable controls for installing chain link fence.

An Ornamental Fence Installation JHA — breaking the task into steps, identifying post-hole, lifting, and impalement hazards, and assigning real, signable controls for installing ornamental metal fence.

A Conveyor Belt Maintenance JHA — breaking the task into steps, identifying nip-point, stored-energy, and lockout hazards, and assigning real, signable controls for maintaining belt conveyors.

A Rotary Equipment Maintenance JHA — breaking the task into steps, identifying rotating-energy, stored-energy, and lockout hazards, and assigning real, signable controls for maintaining rotating equipment.

A Heat Exchanger Maintenance JHA — breaking the task into steps, identifying confined-space, chemical-residue, and stored-energy hazards, and assigning real, signable controls for maintaining heat exchangers.

An Industrial Cleaning JHA — breaking the task into steps, identifying high-pressure, chemical, and confined-space hazards, and assigning real, signable controls for industrial cleaning operations.

A Catalyst Replacement JHA — breaking the task into steps, identifying inert-atmosphere, pyrophoric, and confined-space hazards, and assigning real, signable controls for catalyst replacement.

A Reactor Maintenance JHA — breaking the task into steps, identifying confined-space, chemical, and stored-energy hazards, and assigning real, signable controls for maintaining process reactors.

A Shutdown Maintenance JHA — breaking the task into steps, identifying energy-isolation, simultaneous-operations, and confined-space hazards, and assigning real, signable controls for plant shutdown maintenance.

A Turnaround Maintenance JHA — breaking the task into steps, identifying simultaneous-operations, contractor-coordination, and energy-isolation hazards, and assigning real, signable controls for plant turnarounds.

A Tank Farm Operations JHA — breaking the task into steps, identifying flammable-atmosphere, confined-space, and fall hazards, and assigning real, signable controls for tank farm operations.

A Flange Management JHA — breaking the task into steps, identifying stored-energy, line-break, and bolting hazards, and assigning real, signable controls for flange and bolted-joint management.

A Solar Inverter Installation JHA — breaking the task into steps, identifying DC-arc, stored-energy, and lifting hazards, and assigning real, signable controls for installing solar inverters.

A Battery Rack Installation JHA — breaking the task into steps, identifying stored-energy, short-circuit, and chemical hazards, and assigning real, signable controls for installing battery racks.

An EV Charger Installation JHA — breaking the task into steps, identifying electrical, trenching, and high-power hazards, and assigning real, signable controls for installing EV charging stations.

A Wind Turbine Blade Replacement JHA — breaking the task into steps, identifying extreme-height, critical-lift, and weather hazards, and assigning real, signable controls for replacing wind turbine blades.

A Solar Tracker Installation JHA — breaking the task into steps, identifying stored-energy, pinch, and pile-driving hazards, and assigning real, signable controls for installing solar trackers.

A Utility-Scale Solar Construction JHA — breaking the task into steps, identifying DC-electrical, heat, and heavy-equipment hazards, and assigning real, signable controls for utility-scale solar construction.

A Battery Commissioning JHA — breaking the task into steps, identifying energization, thermal-runaway, and stored-energy hazards, and assigning real, signable controls for commissioning battery systems.

A High Voltage Cable Installation JHA — breaking the task into steps, identifying pulling-tension, weight, and electrical hazards, and assigning real, signable controls for installing high voltage cable.

A Switchyard Construction JHA — breaking the task into steps, identifying energized-equipment, high-voltage, and rigging hazards, and assigning real, signable controls for switchyard construction.

A Transmission Line Construction JHA — breaking the task into steps, identifying energized-line, height, and stringing hazards, and assigning real, signable controls for transmission line construction.

A Prefabricated Data Hall Module Installation JHA — breaking the task into steps, identifying critical-lift, module-mating, and MEP-tie-in hazards, and assigning real, signable controls for setting prefabricated data hall modules.

A Skid-Mounted Equipment Installation JHA — breaking the task into steps, identifying rigging, load-shift, and tie-in hazards, and assigning real, signable controls for setting skid-mounted equipment.

A Modular Electrical Room Installation JHA — breaking the task into steps, identifying critical-lift, electrical-tie-in, and arc-flash hazards, and assigning real, signable controls for setting modular electrical rooms.

A Prefabricated Power Skid Installation JHA — breaking the task into steps, identifying rigging, electrical-tie-in, and stored-energy hazards, and assigning real, signable controls for setting prefabricated power skids.

A Cooling Distribution Unit (CDU) Installation JHA — breaking the task into steps, identifying pressurized-fluid, rigging, and electrical hazards, and assigning real, signable controls for installing CDUs.

A Liquid Cooling System Installation JHA — breaking the task into steps, identifying pressurized-fluid, leak-near-electronics, and coolant-chemical hazards, and assigning real, signable controls for installing data center liquid cooling.

A Direct-to-Chip Cooling Installation JHA — breaking the task into steps, identifying leak-near-live-hardware, connection, and coolant hazards, and assigning real, signable controls for installing direct-to-chip cooling.

An Immersion Cooling System Installation JHA — breaking the task into steps, identifying dielectric-fluid, heavy-tank, and slip hazards, and assigning real, signable controls for installing immersion cooling.

An Overhead Refrigerant Piping Installation JHA — breaking the task into steps, identifying overhead-fall, refrigerant, and brazing hazards, and assigning real, signable controls for installing overhead refrigerant piping.

A Prefabricated MEP Rack Installation JHA — breaking the task into steps, identifying overhead-lift, rigging, and multi-trade-tie-in hazards, and assigning real, signable controls for installing prefabricated MEP racks.

An AI GPU Rack Installation JHA — breaking the task into steps, identifying extreme-weight, high-power, and liquid-cooling hazards, and assigning real, signable controls for installing AI GPU racks.

A High-Density Rack Installation JHA — breaking the task into steps, identifying heavy-rack, tip-over, and floor-loading hazards, and assigning real, signable controls for installing high-density data center racks.

A Liquid Cooling Manifold Installation JHA — breaking the task into steps, identifying pressurized-fluid, leak-near-electronics, and connection hazards, and assigning real, signable controls for installing liquid cooling manifolds.

A Rear Door Heat Exchanger Installation JHA — breaking the task into steps, identifying heavy-door, pressurized-fluid, and pinch hazards, and assigning real, signable controls for installing rear door heat exchangers.

A Hot-Swappable Battery Cabinet Installation JHA — breaking the task into steps, identifying live-battery, short-circuit, and heavy-module hazards, and assigning real, signable controls for installing hot-swappable battery cabinets.

A Steam Turbine Installation JHA — breaking the task into steps, identifying critical-lift, precision-alignment, and rotating-equipment hazards, and assigning real, signable controls for installing steam turbines.

A Gas Turbine Installation JHA — breaking the task into steps, identifying critical-lift, alignment, and fuel-gas hazards, and assigning real, signable controls for installing gas turbines.

A Heat Recovery Steam Generator (HRSG) Installation JHA — breaking the task into steps, identifying extreme-height, heavy-module-lift, and confined-space hazards, and assigning real, signable controls for installing HRSGs.

A Boiler Pressure Parts Installation JHA — breaking the task into steps, identifying heavy-lift, confined-space, and code-welding hazards, and assigning real, signable controls for installing boiler pressure parts.

A Steam Drum Installation JHA — breaking the task into steps, identifying critical-lift, height, and confined-space hazards, and assigning real, signable controls for installing steam drums.

A Condenser Installation JHA — breaking the task into steps, identifying heavy-lift, confined-space, and tube-handling hazards, and assigning real, signable controls for installing power plant condensers.

A Cooling Water Intake Structure Construction JHA — breaking the task into steps, identifying water/drowning, excavation, and cofferdam hazards, and assigning real, signable controls for building cooling water intake structures.

A Cooling Water Piping Installation JHA — breaking the task into steps, identifying large-diameter-pipe, trench, and confined-space hazards, and assigning real, signable controls for installing cooling water piping.

A Stack (Chimney) Construction JHA — breaking the task into steps, identifying extreme-height, falling-object, and access hazards, and assigning real, signable controls for constructing power plant stacks.

An Air-Cooled Condenser (ACC) Installation JHA — breaking the task into steps, identifying elevated-structure, heavy-lift, and large-fan hazards, and assigning real, signable controls for installing air-cooled condensers.

A Transformer Yard Construction JHA — breaking the task into steps, identifying critical-lift, transformer-oil, and energized-equipment hazards, and assigning real, signable controls for building transformer yards.

A Control Room Equipment Installation JHA — breaking the task into steps, identifying electrical, handling, and energized-panel hazards, and assigning real, signable controls for installing control room equipment.

A Steam Blow Operations JHA — breaking the task into steps, identifying high-energy-steam, noise, and burn hazards, and assigning real, signable controls for steam blow operations.

A Turbine Alignment and Precision Grouting JHA — breaking the task into steps, identifying pinch, chemical-grout, and heavy-component hazards, and assigning real, signable controls for turbine alignment and grouting.

A Power Plant Mechanical Commissioning JHA — breaking the task into steps, identifying stored-energy, first-energization, and systems-becoming-live hazards, and assigning real, signable controls for power plant mechanical commissioning.

A Roof Inspection JHA — breaking the task into steps, identifying fall, fragile-surface, and access hazards, and assigning real, signable controls for inspecting roofs.

A Roof Access Setup JHA — breaking the task into steps, identifying ladder/access, transition, and fall hazards, and assigning real, signable controls for setting up roof access.

A Roof Tear-Off JHA — breaking the task into steps, identifying fall, hazardous-material, and debris hazards, and assigning real, signable controls for roof tear-off.

A Roof Deck Inspection JHA — breaking the task into steps, identifying fall-through, weakened-deck, and access hazards, and assigning real, signable controls for inspecting roof decks.

A Roof Deck Repair JHA — breaking the task into steps, identifying fall-through, hot-work, and material-handling hazards, and assigning real, signable controls for repairing roof decks.

A Temporary Roof Protection JHA — breaking the task into steps, identifying fall, weather-exposure, and material-handling hazards, and assigning real, signable controls for installing temporary roof protection.

A Roof Opening Protection JHA — breaking the task into steps, identifying fall-through, cover-adequacy, and skylight hazards, and assigning real, signable controls for protecting roof openings.

A Material Staging on Roof JHA — breaking the task into steps, identifying roof-loading, fall, and material-movement hazards, and assigning real, signable controls for staging materials on roofs.

A Roof Loading and Material Distribution JHA — breaking the task into steps, identifying structural-overload, hoisting, and distribution hazards, and assigning real, signable controls for roof loading and material distribution.

A Roof Debris Removal JHA — breaking the task into steps, identifying falling-debris, fall, and material-handling hazards, and assigning real, signable controls for removing roof debris.

A TPO Roofing Installation JHA — breaking the task into steps, identifying fall, hot-air-welding, and material-handling hazards, and assigning real, signable controls for installing TPO roofing.

An EPDM Roofing Installation JHA — breaking the task into steps, identifying fall, adhesive/solvent, and material-handling hazards, and assigning real, signable controls for installing EPDM roofing.

A PVC Roofing Installation JHA — breaking the task into steps, identifying fall, hot-air-welding, and material-handling hazards, and assigning real, signable controls for installing PVC roofing.

A Built-Up Roofing (BUR) Installation JHA — breaking the task into steps, identifying hot-asphalt, fume, and fall hazards, and assigning real, signable controls for installing built-up roofing.

A Modified Bitumen Roofing Installation JHA — breaking the task into steps, identifying torch-fire, burn, and fall hazards, and assigning real, signable controls for installing modified bitumen roofing.

A Spray Polyurethane Foam (SPF) Roofing JHA — breaking the task into steps, identifying isocyanate, overspray, and fall hazards, and assigning real, signable controls for SPF roofing.

A Roof Membrane Heat Welding JHA — breaking the task into steps, identifying burn, fire, and fume hazards, and assigning real, signable controls for heat-welding roof membranes.

A Roof Membrane Adhesive Application JHA — breaking the task into steps, identifying flammable-vapor, chemical-exposure, and fall hazards, and assigning real, signable controls for applying roof membrane adhesives.

A Roof Insulation Installation JHA — breaking the task into steps, identifying fall, wind, and adhesive/fastener hazards, and assigning real, signable controls for installing roof insulation.

A Cover Board Installation JHA — breaking the task into steps, identifying fall, silica-dust, and material-handling hazards, and assigning real, signable controls for installing roof cover boards.

A Standing Seam Metal Roof Installation JHA — breaking the task into steps, identifying fall, sharp-panel, and wind hazards, and assigning real, signable controls for installing standing seam metal roofs.

A Corrugated Metal Roof Installation JHA — breaking the task into steps, identifying fall, fall-through, and sharp-edge hazards, and assigning real, signable controls for installing corrugated metal roofs.

A Metal Roof Panel Installation JHA — breaking the task into steps, identifying fall, sharp-edge, and panel-handling/wind hazards, and assigning real, signable controls for installing metal roof panels.

A Roof Flashing Installation JHA — breaking the task into steps, identifying edge-fall, sharp-metal, and sealant/hot-work hazards, and assigning real, signable controls for installing roof flashing.

A Roof Coping Installation JHA — breaking the task into steps, identifying parapet-edge-fall, sharp-metal, and handling hazards, and assigning real, signable controls for installing roof coping.

A Ridge Cap Installation JHA — breaking the task into steps, identifying ridge-work-fall, sharp-metal, and sloped-surface hazards, and assigning real, signable controls for installing ridge caps.

A Snow Guard Installation JHA — breaking the task into steps, identifying sloped-metal-roof-fall, sharp-edge, and attachment hazards, and assigning real, signable controls for installing snow guards.

A Roof Hatch Installation JHA — breaking the task into steps, identifying fall-through-opening, cut, and handling hazards, and assigning real, signable controls for installing roof hatches.

A Roof Curb Installation JHA — breaking the task into steps, identifying fall-through-opening, cut, and handling hazards, and assigning real, signable controls for installing roof curbs.

An Expansion Joint Installation on Roof JHA — breaking the task into steps, identifying fall, sharp-metal, and sealant/handling hazards, and assigning real, signable controls for installing roof expansion joints.

A Busway Joint Installation JHA — breaking the task into steps, identifying torque-critical-connection, electrical, and handling hazards, and assigning real, signable controls for installing busway joints.

A Busway Energization JHA — breaking the task into steps, identifying first-energization, arc-flash, and verification hazards, and assigning real, signable controls for energizing busway.

A Static UPS Battery Connection JHA — breaking the task into steps, identifying DC-arc/stored-energy, chemical, and short-circuit hazards, and assigning real, signable controls for connecting UPS batteries.

A Battery Cabinet Interconnection JHA — breaking the task into steps, identifying inter-cabinet-DC, short-circuit, and cable-handling hazards, and assigning real, signable controls for interconnecting battery cabinets.

A Generator Fuel Polishing System Installation JHA — breaking the task into steps, identifying fuel/flammable, fuel-system-connection, and confined-space hazards, and assigning real, signable controls for installing fuel polishing systems.

A Generator Exhaust Stack Installation JHA — breaking the task into steps, identifying heavy-lift-at-height, fall, and hot-surface hazards, and assigning real, signable controls for installing generator exhaust stacks.

A Day Tank Installation JHA — breaking the task into steps, identifying fuel/flammable, handling, and fuel-connection hazards, and assigning real, signable controls for installing generator day tanks.

A Fuel Transfer Pump Installation JHA — breaking the task into steps, identifying fuel/flammable, electrical-ignition, and fuel-connection hazards, and assigning real, signable controls for installing fuel transfer pumps.

A Fuel Leak Detection System Installation JHA — breaking the task into steps, identifying fuel-system-work, confined-space, and electrical hazards, and assigning real, signable controls for installing fuel leak detection systems.

A Harmonic Filter Installation JHA — breaking the task into steps, identifying capacitor-stored-energy, electrical, and handling hazards, and assigning real, signable controls for installing harmonic filters.

A Medium Voltage Switch Installation JHA — breaking the task into steps, identifying MV-electrical/arc-flash, heavy-equipment, and termination hazards, and assigning real, signable controls for installing medium voltage switches.

A Generator Paralleling Switchgear Installation JHA — breaking the task into steps, identifying multiple-source-electrical, arc-flash, and heavy-equipment hazards, and assigning real, signable controls for installing generator paralleling switchgear.

A Generator Synchronization Panel Installation JHA — breaking the task into steps, identifying control-power, panel-electrical, and commissioning hazards, and assigning real, signable controls for installing generator synchronization panels.

A Busway Support Hanger Installation JHA — breaking the task into steps, identifying overhead-work/falls, support-adequacy, and struck-by hazards, and assigning real, signable controls for installing busway support hangers.

A Cable Bus Installation JHA — breaking the task into steps, identifying cable-handling, overhead-work/falls, and termination hazards, and assigning real, signable controls for installing cable bus.

A Electrical Power Whip Installation JHA — breaking the task into steps, identifying live-connection, overhead-work, and data-center-environment hazards, and assigning real, signable controls for installing power whips.

A Overhead Power Raceway Installation JHA — breaking the task into steps, identifying overhead-work/falls, struck-by, and material-handling hazards, and assigning real, signable controls for installing overhead power raceway.

A Power Quality Meter Installation JHA — breaking the task into steps, identifying energized-equipment/CT, arc-flash, and wiring hazards, and assigning real, signable controls for installing power quality meters.

A Power Monitoring System Installation JHA — breaking the task into steps, identifying energized-equipment/CT, multi-location-work, and wiring hazards, and assigning real, signable controls for installing power monitoring systems.

A Ground Grid Installation JHA — breaking the task into steps, identifying excavation/trenching, exothermic-welding, and material-handling hazards, and assigning real, signable controls for installing ground grids.

A Equipotential Bonding Installation JHA — breaking the task into steps, identifying step-and-touch-potential, connection-quality, and handling hazards, and assigning real, signable controls for installing equipotential bonding.

A Transformer Oil Containment System Installation JHA — breaking the task into steps, identifying excavation, energized-transformer-proximity, and structure hazards, and assigning real, signable controls for installing transformer oil containment.

A Cable Vault Construction JHA — breaking the task into steps, identifying excavation, confined-space, and structure hazards, and assigning real, signable controls for constructing cable vaults.

A Electrical Trench Construction JHA — breaking the task into steps, identifying trench-collapse, utility-strike, and duct-bank hazards, and assigning real, signable controls for constructing electrical trenches.

A Utility Service Entrance Installation JHA — breaking the task into steps, identifying utility-interface/energized, coordination, and installation hazards, and assigning real, signable controls for installing utility service entrances.

A Chiller Plant Piping Tie-In JHA — breaking the task into steps, identifying tie-in-to-live-system, stored-energy/pressure, and hot-work hazards, and assigning real, signable controls for chiller plant piping tie-ins.

A Pump Skid Installation JHA — breaking the task into steps, identifying heavy-skid-rigging, piping/electrical-connection, and commissioning hazards, and assigning real, signable controls for installing pump skids.

A Hydronic Balancing Valve Installation JHA — breaking the task into steps, identifying piping-connection, system-pressure, and handling hazards, and assigning real, signable controls for installing hydronic balancing valves.

A Expansion Tank Installation JHA — breaking the task into steps, identifying pressure-vessel, handling/rigging, and piping-connection hazards, and assigning real, signable controls for installing expansion tanks.

A Air Separator Installation JHA — breaking the task into steps, identifying pressure-vessel, handling, and piping-connection hazards, and assigning real, signable controls for installing air separators.

A Glycol Filling Operations JHA — breaking the task into steps, identifying chemical-exposure, spill/slip, and system-pressure hazards, and assigning real, signable controls for glycol filling operations.

A Chemical Water Treatment System Installation JHA — breaking the task into steps, identifying chemical-handling, piping-connection, and electrical hazards, and assigning real, signable controls for installing chemical water treatment systems.

A Pipe Support Installation JHA — breaking the task into steps, identifying overhead-work/falls, support-adequacy, and struck-by hazards, and assigning real, signable controls for installing pipe supports.

A Vibration Isolation Installation JHA — breaking the task into steps, identifying load-handling/stability, pinch, and support-adequacy hazards, and assigning real, signable controls for installing vibration isolation.

A Mechanical Equipment Alignment JHA — breaking the task into steps, identifying rotating-equipment/energy, pinch, and precision-work hazards, and assigning real, signable controls for mechanical equipment alignment.

A Clean Agent Cylinder Installation JHA — breaking the task into steps, identifying stored-pressure/discharge, cylinder-handling, and agent-exposure hazards, and assigning real, signable controls for installing clean agent cylinders.

A Fire Pump Controller Installation JHA — breaking the task into steps, identifying electrical/power, wiring-correctness, and handling hazards, and assigning real, signable controls for installing fire pump controllers.

A Smoke Control Damper Installation JHA — breaking the task into steps, identifying overhead-work/falls, ductwork-handling, and life-safety-function hazards, and assigning real, signable controls for installing smoke control dampers.

A Fire-Rated Wall Penetration Sealing JHA — breaking the task into steps, identifying firestop-material/chemical, overhead-access, and life-safety-barrier hazards, and assigning real, signable controls for sealing fire-rated penetrations.

A Cable Firestopping Installation JHA — breaking the task into steps, identifying firestop-material/chemical, cable-tray-access, and life-safety-barrier hazards, and assigning real, signable controls for installing cable firestopping.

A Data Hall Ceiling Grid Installation JHA — breaking the task into steps, identifying overhead-work/falls, struck-by, and repetitive-strain hazards, and assigning real, signable controls for installing data hall ceiling grid.

A Anti-Static Flooring Installation JHA — breaking the task into steps, identifying adhesive/chemical, knee/ergonomic, and dust hazards, and assigning real, signable controls for installing anti-static flooring.

A Equipment Seismic Restraint Installation JHA — breaking the task into steps, identifying anchoring/drilling, restraint-adequacy, and equipment-proximity hazards, and assigning real, signable controls for installing equipment seismic restraints.

A Cable Drop Installation JHA — breaking the task into steps, identifying overhead-work/falls, repetitive-strain, and data-hall-environment hazards, and assigning real, signable controls for installing cable drops.

A Rack Blanketing and Protection JHA — breaking the task into steps, identifying manual-handling/ergonomic, equipment-proximity, and access hazards, and assigning real, signable controls for rack blanketing and protection.

A Temporary Dust Containment Installation JHA — breaking the task into steps, identifying access/overhead, containment-adequacy, and material-handling hazards, and assigning real, signable controls for installing temporary dust containment.

A Construction Cleaning for Data Halls JHA — breaking the task into steps, identifying dust/respiratory, cleaning-chemical, and equipment-proximity hazards, and assigning real, signable controls for construction cleaning in data halls.

A Cleanroom-Style Final Cleaning JHA — breaking the task into steps, identifying cleaning-chemical, energized-equipment-proximity, and access/ergonomic hazards, and assigning real, signable controls for cleanroom-style final cleaning.

A IT Equipment Delivery and Offloading JHA — breaking the task into steps, identifying offloading/heavy-load, struck-by/pinch, and load-stability hazards, and assigning real, signable controls for IT equipment delivery and offloading.

A Indoor Equipment Skating and Positioning JHA — breaking the task into steps, identifying heavy-load-movement, pinch/crush, and floor-loading hazards, and assigning real, signable controls for indoor equipment skating and positioning.

A Precision Equipment Jacking JHA — breaking the task into steps, identifying load-support/jack-failure, pinch/crush, and load-stability hazards, and assigning real, signable controls for precision equipment jacking.

A Temporary Environmental Monitoring JHA — breaking the task into steps, identifying access/placement, equipment-proximity, and electrical hazards, and assigning real, signable controls for temporary environmental monitoring.

A Network Time Protocol (NTP) Equipment Installation JHA — breaking the task into steps, identifying rack-mounting/access, antenna-at-height, and electrical hazards, and assigning real, signable controls for installing NTP equipment.

A Building Envelope Penetration Sealing JHA — breaking the task into steps, identifying at-height/access, sealant-chemical, and weatherproofing-integrity hazards, and assigning real, signable controls for sealing building envelope penetrations.

A Roof Equipment Rigging for Data Centers JHA — breaking the task into steps, identifying crane-lift/rigging, roof-edge-fall, and roof-loading hazards, and assigning real, signable controls for rigging equipment onto data-center roofs.

A Temporary Weather Protection for Data Halls JHA — breaking the task into steps, identifying at-height/access, wind/weather-load, and protection-adequacy hazards, and assigning real, signable controls for temporary weather protection.

A Data Center Expansion Joint Sealing JHA — breaking the task into steps, identifying sealant-chemical, access/position, and joint-integrity hazards, and assigning real, signable controls for sealing data center expansion joints.

A Acoustic Enclosure Installation JHA — breaking the task into steps, identifying heavy-panel-handling, at-height/access, and struck-by hazards, and assigning real, signable controls for installing acoustic enclosures.

A Generator Acoustic Barrier Installation JHA — breaking the task into steps, identifying heavy-panel-handling, wind/barrier-stability, and at-height/struck-by hazards, and assigning real, signable controls for installing generator acoustic barriers.

A Mission Critical Equipment Protection JHA — breaking the task into steps, identifying energized-equipment-proximity, protection-adequacy, and access/handling hazards, and assigning real, signable controls for protecting mission critical equipment.

A Building Information Modeling (BIM) Coordination JHA — breaking the task into steps, identifying field-verification/site-access, ergonomic/computer-work, and coordination-error hazards, and assigning real, signable controls for BIM coordination.

A Embedded Conduit Installation JHA — breaking the task into steps, identifying placement-accuracy, concrete-pour-proximity, and manual-handling hazards, and assigning real, signable controls for installing embedded conduit.

A Cast-in Anchor Installation JHA — breaking the task into steps, identifying placement-accuracy/anchor-adequacy, concrete-pour-proximity, and manual-handling hazards, and assigning real, signable controls for installing cast-in anchors.

A Equipment Housekeeping Pad Installation JHA — breaking the task into steps, identifying concrete-work/manual-handling, embed-accuracy, and formwork hazards, and assigning real, signable controls for installing equipment housekeeping pads.

A Precision Concrete Slab Placement JHA — breaking the task into steps, identifying concrete-contact/placement, ergonomic/overexertion, and placement-equipment hazards, and assigning real, signable controls for precision concrete slab placement.

A Slab Flatness Testing JHA — breaking the task into steps, identifying active-construction-site, ergonomic/kneeling, and equipment hazards, and assigning real, signable controls for slab flatness testing.

A Embedded Plate Installation JHA — breaking the task into steps, identifying placement-accuracy/plate-adequacy, concrete-pour-proximity, and manual-handling hazards, and assigning real, signable controls for installing embedded plates.

A Mechanical Sleeve Installation JHA — breaking the task into steps, identifying placement-accuracy, concrete-pour-proximity, and manual-handling hazards, and assigning real, signable controls for installing mechanical sleeves.

A Cable Trench Cover Installation JHA — breaking the task into steps, identifying heavy-cover-handling, open-trench/fall, and pinch/crush hazards, and assigning real, signable controls for installing cable trench covers.

A Underground Electrical Ductbank Encasement JHA — breaking the task into steps, identifying trench-collapse/excavation, concrete-pour-in-trench, and duct-placement hazards, and assigning real, signable controls for encasing underground electrical ductbanks.

A Concrete Equipment Foundation Installation JHA — breaking the task into steps, identifying concrete-work/pour, rebar/formwork, and anchor-embed-accuracy hazards, and assigning real, signable controls for installing concrete equipment foundations.

A Vibration Monitoring Equipment Installation JHA — breaking the task into steps, identifying rotating-equipment-proximity, access/at-height, and electrical hazards, and assigning real, signable controls for installing vibration monitoring equipment.

A Temporary Generator Fueling JHA — breaking the task into steps, identifying fuel-fire/flammability, spill/environmental, and hot-equipment/electrical hazards, and assigning real, signable controls for temporary generator fueling.

A Bulk Fuel Storage Tank Commissioning JHA — breaking the task into steps, identifying flammable-atmosphere/fuel-introduction, confined-space, and system-pressure/leak hazards, and assigning real, signable controls for commissioning bulk fuel storage tanks.

A Emergency Fuel Transfer Testing JHA — breaking the task into steps, identifying fuel-fire/leak, system-operation/pressure, and electrical hazards, and assigning real, signable controls for testing emergency fuel transfer systems.

A Pipe Flushing Operations JHA — breaking the task into steps, identifying high-flow/pressure-and-water-discharge, system-connection, and slip/water-management hazards, and assigning real, signable controls for pipe flushing operations.

A Hydronic Pressure Balancing JHA — breaking the task into steps, identifying charged-system/pressure, access/rotating-equipment, and glycol/hot-water hazards, and assigning real, signable controls for hydronic pressure balancing.

A Cooling Water Chemical Cleaning JHA — breaking the task into steps, identifying cleaning-chemical-exposure, charged-system/circulation, and waste/discharge hazards, and assigning real, signable controls for cooling water chemical cleaning.

A Temporary Chiller Installation JHA — breaking the task into steps, identifying heavy-equipment-rigging, temporary-connection (piping/electrical), and refrigerant hazards, and assigning real, signable controls for installing temporary chillers.

A Equipment Preservation During Construction JHA — breaking the task into steps, identifying preservation-chemical/desiccant, access/handling, and rotating-equipment-turning hazards, and assigning real, signable controls for equipment preservation during construction.

A Mechanical Equipment Rotation Checks JHA — breaking the task into steps, identifying rotating-equipment/energy-control, pinch/entanglement, and electrical hazards, and assigning real, signable controls for mechanical equipment rotation checks.

A Valve Actuator Installation JHA — breaking the task into steps, identifying stored-energy/actuation, electrical, and access/handling hazards, and assigning real, signable controls for installing valve actuators.

A Flexible Connector Installation JHA — breaking the task into steps, identifying connection-integrity, manual-handling/access, and charged-system hazards, and assigning real, signable controls for installing flexible connectors.

A Expansion Loop Installation JHA — breaking the task into steps, identifying overhead-work/falls, pipe-handling/rigging, and hot-work/anchor-integrity hazards, and assigning real, signable controls for installing pipe expansion loops.

A Clean Agent Room Integrity Testing JHA — breaking the task into steps, identifying test-equipment/door-fan, accidental-discharge-prevention, and access hazards, and assigning real, signable controls for clean agent room integrity testing.

A Fire Alarm Cause-and-Effect Testing JHA — breaking the task into steps, identifying triggered-system-output, coordination/notification, and access hazards, and assigning real, signable controls for fire alarm cause-and-effect testing.

A Smoke Detector Sensitivity Testing JHA — breaking the task into steps, identifying at-height/access, alarm-coordination, and test-material hazards, and assigning real, signable controls for smoke detector sensitivity testing.

A Fire Protection Valve Acceptance Testing JHA — breaking the task into steps, identifying high-pressure-water/discharge, system-charging, and access hazards, and assigning real, signable controls for fire protection valve acceptance testing.

A Smoke Control System Functional Testing JHA — breaking the task into steps, identifying activated-equipment/airflow, coordination, and access hazards, and assigning real, signable controls for smoke control system functional testing.

A Temporary Fire Protection During Construction JHA — breaking the task into steps, identifying fire-protection-coverage-gap, installation/access, and coordination hazards, and assigning real, signable controls for temporary fire protection during construction.

A Cable Dressing and Bundling JHA — breaking the task into steps, identifying repetitive-strain/ergonomic, at-height/access, and energized-equipment-proximity hazards, and assigning real, signable controls for cable dressing and bundling.

A Fiber Splicing JHA — breaking the task into steps, identifying fiber-shards/eye, chemical/fusion-splicer, and laser-light/ergonomic hazards, and assigning real, signable controls for fiber splicing.

A OTDR Fiber Testing JHA — breaking the task into steps, identifying laser-light/eye, fiber-shard, and access hazards, and assigning real, signable controls for OTDR fiber testing.

A Network Switch Installation JHA — breaking the task into steps, identifying rack-mounting/ergonomic, energized-equipment-proximity, and access hazards, and assigning real, signable controls for installing network switches.

A KVM System Installation JHA — breaking the task into steps, identifying rack-mounting/ergonomic, energized-equipment-proximity, and cabling/access hazards, and assigning real, signable controls for installing KVM systems.

A Console Cabinet Installation JHA — breaking the task into steps, identifying heavy-cabinet-handling/tip-over, pinch/crush, and ergonomic/access hazards, and assigning real, signable controls for installing console cabinets.

A BMS Control Panel Wiring JHA — breaking the task into steps, identifying electrical-shock/energized-panel, wiring-correctness, and ergonomic hazards, and assigning real, signable controls for BMS control panel wiring.

A BAS Controller Programming Support JHA — breaking the task into steps, identifying controlled-equipment-operation, active-site/access, and ergonomic hazards, and assigning real, signable controls for BAS controller programming support.

A Digital Twin Sensor Installation JHA — breaking the task into steps, identifying at-height/access, energized-equipment-proximity, and low-voltage-electrical hazards, and assigning real, signable controls for installing digital twin sensors.

A Occupancy Sensor Installation JHA — breaking the task into steps, identifying at-height/ladder, electrical-shock, and repetitive/ergonomic hazards, and assigning real, signable controls for installing occupancy sensors.

A Condensation Drain Installation JHA — breaking the task into steps, identifying at-height/access, manual-handling/ergonomic, and slip/water hazards, and assigning real, signable controls for installing condensation drains.

A Equipment Nameplate Labeling JHA — breaking the task into steps, identifying energized-equipment-proximity, at-height/access, and labeling-accuracy hazards, and assigning real, signable controls for equipment nameplate labeling.

A Identification Tag Installation JHA — breaking the task into steps, identifying at-height/access, energized-and-operating-equipment-proximity, and tagging-accuracy hazards, and assigning real, signable controls for identification tag installation.

A Construction Punch List Operations JHA — breaking the task into steps, identifying active/occupied-site, varied-task/access, and operating-systems hazards, and assigning real, signable controls for construction punch list operations.

A Final Owner Walkdown JHA — breaking the task into steps, identifying occupied/operating-facility, walking/slip-trip, and operating-systems-proximity hazards, and assigning real, signable controls for a final owner walkdown.

A Temporary Construction Barrier Installation JHA — breaking the task into steps, identifying barrier-handling/stability, occupied-area/coordination, and access hazards, and assigning real, signable controls for installing temporary construction barriers.

A Clean Construction Protocol JHA — breaking the task into steps, identifying cleaning-chemical/agent, contamination-control-procedure, and access/ergonomic hazards, and assigning real, signable controls for clean construction protocol work.

A Dust Monitoring During Construction JHA — breaking the task into steps, identifying active-site/access, dust-exposure, and equipment hazards, and assigning real, signable controls for dust monitoring during construction.

A Final Data Hall Turnover JHA — breaking the task into steps, identifying live-critical-systems, occupied/operating-space, and final-verification-integrity hazards, and assigning real, signable controls for final data hall turnover.

A Mission Critical Facility Handover JHA — breaking the task into steps, identifying live-operating-facility, handover-completeness/safety-documentation, and transition-coordination hazards, and assigning real, signable controls for mission critical facility handover.

A Turbine Pedestal Construction JHA — breaking the task into steps, identifying mass-concrete/pour, heavy-rebar/formwork, and anchor/embed-accuracy hazards, and assigning real, signable controls for constructing a turbine pedestal.

A Pipe Rack Steel Erection JHA — breaking the task into steps, identifying falls-from-height, crane/rigging/struck-by, and structural-stability/connection hazards, and assigning real, signable controls for pipe rack steel erection.

A Equipment Grouting JHA — breaking the task into steps, identifying grout-chemical/material, ergonomic/manual-handling, and grout-quality hazards, and assigning real, signable controls for equipment grouting.

A Cable Tunnel Construction JHA — breaking the task into steps, identifying excavation/trench-collapse, confined-space, and concrete/structural hazards, and assigning real, signable controls for cable tunnel construction.

A Cooling Basin Construction JHA — breaking the task into steps, identifying excavation/earthwork, concrete/rebar/formwork, and water/liner hazards, and assigning real, signable controls for cooling basin construction.

A Transformer Foundation Construction JHA — breaking the task into steps, identifying concrete/rebar/formwork, anchor/embed-accuracy, and oil-containment-integration hazards, and assigning real, signable controls for transformer foundation construction.

A Control Building Construction JHA — breaking the task into steps, identifying structural/multi-trade, falls/at-height, and heavy-equipment/crane hazards, and assigning real, signable controls for control building construction.

A Auxiliary Building Construction JHA — breaking the task into steps, identifying structural/multi-trade, falls/at-height, and heavy-equipment/crane hazards, and assigning real, signable controls for auxiliary building construction.

A Gas Fuel Piping Installation JHA — breaking the task into steps, identifying gas-tightness/leak-integrity, welding/hot-work, and pressure-testing hazards, and assigning real, signable controls for gas fuel piping installation.

A Natural Gas Filter Installation JHA — breaking the task into steps, identifying gas-tightness/flammable-gas, pressure-vessel/connection, and rigging/handling hazards, and assigning real, signable controls for natural gas filter installation.

A Gas Pressure Regulating Station Installation JHA — breaking the task into steps, identifying gas-tightness/flammable-gas, pressure-regulation/relief-integrity, and rigging/piping hazards, and assigning real, signable controls for gas pressure regulating station installation.

A Lube Oil System Installation JHA — breaking the task into steps, identifying oil-system-cleanliness/leak, fire/oil-hazard, and rigging/piping hazards, and assigning real, signable controls for lube oil system installation.

A Seal Oil System Installation JHA — breaking the task into steps, identifying oil-cleanliness/leak-and-hydrogen-seal, fire/oil-hazard, and rigging/piping hazards, and assigning real, signable controls for seal oil system installation.

A Hydraulic Power Unit Installation JHA — breaking the task into steps, identifying high-pressure-hydraulic/stored-energy, oil-cleanliness/fire, and rigging/electrical hazards, and assigning real, signable controls for hydraulic power unit installation.

A Air Intake Filter House Installation JHA — breaking the task into steps, identifying working-at-height/large-structure, crane/rigging, and confined-space/FOD hazards, and assigning real, signable controls for air intake filter house installation.

A Turbine Air Intake Duct Installation JHA — breaking the task into steps, identifying crane/rigging-and-height, confined-space/FOD, and duct-handling hazards, and assigning real, signable controls for turbine air intake duct installation.

A Exhaust Diffuser Installation JHA — breaking the task into steps, identifying heavy-rigging/height, confined-space/FOD, and hot-work/handling hazards, and assigning real, signable controls for exhaust diffuser installation.

A Expansion Bellows Installation JHA — breaking the task into steps, identifying bellows-integrity/handling-damage, at-height/rigging, and hot-work/confined-space hazards, and assigning real, signable controls for expansion bellows installation.

A Instrument Air Compressor Installation JHA — breaking the task into steps, identifying rotating-equipment/compressor, compressed-air/pressure-vessel-stored-energy, and rigging/electrical hazards, and assigning real, signable controls for instrument air compressor installation.

A Instrument Air Dryer Installation JHA — breaking the task into steps, identifying compressed-air/pressure-vessel-stored-energy, desiccant/chemical, and rigging/electrical hazards, and assigning real, signable controls for instrument air dryer installation.

A Service Air Piping Installation JHA — breaking the task into steps, identifying compressed-air/stored-energy, at-height/overhead-piping, and pressure-testing hazards, and assigning real, signable controls for service air piping installation.

A Demineralized Water System Installation JHA — breaking the task into steps, identifying regeneration-chemical/acid-caustic, pressure-vessel/rigging, and piping/electrical hazards, and assigning real, signable controls for demineralized water system installation.

A Chemical Dosing System Installation JHA — breaking the task into steps, identifying dosing-chemical/exposure, metering-pump/pressure, and rigging/electrical hazards, and assigning real, signable controls for chemical dosing system installation.

A Water Treatment Equipment Installation JHA — breaking the task into steps, identifying heavy-equipment/rigging, chemical/process, and piping/electrical hazards, and assigning real, signable controls for water treatment equipment installation.

A Sampling Panel Installation JHA — breaking the task into steps, identifying high-temperature/high-pressure-sample, sample-tubing/connection, and chemical/reagent hazards, and assigning real, signable controls for sampling panel installation.

A Blowdown Tank Installation JHA — breaking the task into steps, identifying heavy-rigging/tank, high-temperature-flash-steam/pressure, and piping/confined-space hazards, and assigning real, signable controls for blowdown tank installation.

A Closed Cooling Water System Installation JHA — breaking the task into steps, identifying heavy-equipment/rigging, piping/pressure-testing, and chemical/inhibitor hazards, and assigning real, signable controls for closed cooling water system installation.

A Auxiliary Cooling Water Piping Installation JHA — breaking the task into steps, identifying large-pipe-handling/rigging, at-height/overhead-piping, and pressure-testing hazards, and assigning real, signable controls for auxiliary cooling water piping installation.

A Marshalling Cabinet Installation JHA — breaking the task into steps, identifying cabinet-handling/rigging, electrical/energized-adjacent, and termination-accuracy hazards, and assigning real, signable controls for marshalling cabinet installation.

A DCS Cabinet Installation JHA — breaking the task into steps, identifying cabinet-handling/rigging, electrical/energized-adjacent, and control-integrity/termination hazards, and assigning real, signable controls for DCS cabinet installation.

A Instrument Junction Box Installation JHA — breaking the task into steps, identifying at-height/field-location, electrical/energized-adjacent, and termination/integrity hazards, and assigning real, signable controls for instrument junction box installation.

A Instrument Tubing Installation JHA — breaking the task into steps, identifying process-connection/stored-energy, at-height/field, and tubing-integrity hazards, and assigning real, signable controls for instrument tubing installation.

A Impulse Line Installation JHA — breaking the task into steps, identifying live-process-tap/stored-energy, at-height/field, and line-integrity/isolation hazards, and assigning real, signable controls for impulse line installation.

A Pressure Transmitter Installation JHA — breaking the task into steps, identifying live-process-connection/stored-energy, at-height/field, and calibration/signal-integrity hazards, and assigning real, signable controls for pressure transmitter installation.

A Temperature Sensor Installation JHA — breaking the task into steps, identifying hot-surface/thermowell-process, at-height/field, and sensor-accuracy/signal hazards, and assigning real, signable controls for temperature sensor installation.

A Vibration Monitoring System Installation JHA — breaking the task into steps, identifying rotating-machinery-proximity, at-height/confined-access, and probe-accuracy/protection-integrity hazards, and assigning real, signable controls for vibration monitoring system installation.

A Turbine Instrumentation Installation JHA — breaking the task into steps, identifying rotating-machinery/hot-surface, at-height/confined-machine-access, and protection-instrument-integrity hazards, and assigning real, signable controls for turbine instrumentation installation.

A Cable Gland Installation JHA — breaking the task into steps, identifying at-height/field-access, electrical/energized-adjacent, and gland-integrity/hazardous-area hazards, and assigning real, signable controls for cable gland installation.

A Instrument Loop Check JHA — breaking the task into steps, identifying live-signal/energized-loop, unexpected-actuation/moving-equipment, and at-height/field-access hazards, and assigning real, signable controls for instrument loop checks.

A Control Valve Stroke Testing JHA — breaking the task into steps, identifying valve-actuation/moving-parts, stored-energy (air/hydraulic/process), and coordination hazards, and assigning real, signable controls for control valve stroke testing.

A Valve Leak Testing JHA — breaking the task into steps, identifying test-pressure/stored-energy, test-medium (and process), and leak-observation-proximity hazards, and assigning real, signable controls for valve leak testing.

A Turbine Turning Gear Operation JHA — breaking the task into steps, identifying rotating-turbine/moving-machinery, engagement/stored-energy, and lube-oil/coordination hazards, and assigning real, signable controls for turbine turning gear operation.

A Lubrication System Flushing JHA — breaking the task into steps, identifying hot-oil/high-flow-circulation, fire/oil, and pressurized-system/connection hazards, and assigning real, signable controls for lubrication system flushing.

A Steam Trap Testing JHA — breaking the task into steps, identifying live-steam/burn-scald, at-height/field-access, and hot-condensate/discharge hazards, and assigning real, signable controls for steam trap testing.

A Mechanical Completion Walkdown JHA — breaking the task into steps, identifying active-construction-and-commissioning-site, walking/access, and systems-transitioning-to-live hazards, and assigning real, signable controls for a mechanical completion walkdown.

A Pre-Startup Safety Review (PSSR) JHA — breaking the task into steps, identifying pre-startup-system-verification, walkthrough-of-near-live-systems, and review-completeness/safety-readiness hazards, and assigning real, signable controls for a pre-startup safety review.

A First Fire Preparation JHA — breaking the task into steps, identifying fuel-gas-introduction/fire-explosion, live-turbine-startup/rotating-and-hot, and area-readiness/coordination hazards, and assigning real, signable controls for first fire preparation.

A Performance Test Support JHA — breaking the task into steps, identifying fully-operating-plant/live-systems, test-instrumentation-near-live-systems, and high-load-operation/coordination hazards, and assigning real, signable controls for performance test support.

A Plant System Turnover JHA — breaking the task into steps, identifying live-operating-system, turnover-completeness/safety-documentation, and transition-of-control/coordination hazards, and assigning real, signable controls for plant system turnover.

A Site Survey Inspection AHA — breaking the task into steps, identifying uneven-terrain/site-access, traffic-and-equipment, and environmental/biological hazards, and assigning real, signable controls for site survey inspection.

A Site Inspection - Over-Water AHA — breaking the task into steps, identifying drowning/water, vessel/boarding, and weather/environmental hazards, and assigning real, signable controls for over-water site inspection.

A Quality Control AHA — breaking the task into steps, identifying active-work-area-access, testing-and-inspection-exposure, and multi-trade/environmental hazards, and assigning real, signable controls for quality control activities.

A Testing and Inspecting Services AHA — breaking the task into steps, identifying active-site/work-area-access, test-method-specific, and sample-handling/material hazards, and assigning real, signable controls for testing and inspecting services.

A Performing Ground Penetrating Radar AHA — breaking the task into steps, identifying active-site/traffic-access, scanning-ergonomic/terrain, and subsurface-interpretation/false-clear hazards, and assigning real, signable controls for performing ground penetrating radar.

A Performing Underground Utility Locating AHA — breaking the task into steps, identifying active-site/traffic-access, locate-accuracy/false-clear, and terrain/ergonomic hazards, and assigning real, signable controls for performing underground utility locating.

A Temporary Drain, Waste, and Vent AHA — breaking the task into steps, identifying sanitation/biological, trenching/connection, and slip/water hazards, and assigning real, signable controls for temporary drain, waste, and vent installation.

A Temporary Electricity AHA — breaking the task into steps, identifying electrical-shock/GFCI, energized-work/connection, and wet-and-outdoor-exposure hazards, and assigning real, signable controls for temporary electricity installation.

A Temporary Lighting AHA — breaking the task into steps, identifying electrical-shock, at-height-installation, and adequate-illumination-as-safety-function hazards, and assigning real, signable controls for temporary lighting installation.

A Fluorescent Lamp (Bulb) Replacement AHA — breaking the task into steps, identifying at-height/ladder-access, broken-glass/mercury-exposure, and electrical hazards, and assigning real, signable controls for fluorescent lamp replacement.

A Temp Heating - LP - Exterior Freeze Protection AHA — breaking the task into steps, identifying propane/fire-explosion, carbon-monoxide/combustion, and hot-surface/burn hazards, and assigning real, signable controls for temporary LP heating and freeze protection.

A Temporary Steam and Condensate Piping AHA — breaking the task into steps, identifying live-steam/burn-scald, pressurized-system/connection, and hot-condensate/at-height hazards, and assigning real, signable controls for temporary steam and condensate piping.

A Temporary Telecommunications AHA — breaking the task into steps, identifying at-height/cable-routing, electrical/adjacent-power, and fiber/laser hazards, and assigning real, signable controls for temporary telecommunications installation.

A Temporary Water (Non-Potable) AHA — breaking the task into steps, identifying cross-connection/potable-contamination, trenching/connection, and slip-freeze/pressure hazards, and assigning real, signable controls for temporary non-potable water.

A Construction Facilities AHA — breaking the task into steps, identifying setup/rigging-and-placement, utility-connection, and site-arrangement/egress hazards, and assigning real, signable controls for construction facilities setup.

A Field Offices and Sheds AHA — breaking the task into steps, identifying placement/rigging, utility-connection/electrical, and occupancy/egress-and-fire hazards, and assigning real, signable controls for field offices and sheds.

A Temporary Sanitary Facilities AHA — breaking the task into steps, identifying sanitation/biological, placement/servicing, and chemical/handling hazards, and assigning real, signable controls for temporary sanitary facilities.

A Temporary Bridges AHA — breaking the task into steps, identifying structural-capacity/failure, erection-rigging/at-height, and traffic-loading/water hazards, and assigning real, signable controls for temporary bridges.

A Temporary Decking AHA — breaking the task into steps, identifying fall-through/opening-cover, structural-capacity/load, and installation-at-height hazards, and assigning real, signable controls for temporary decking.

A Temporary Overpasses AHA — breaking the task into steps, identifying structural-capacity/failure, work-over-live-traffic, and erection-rigging/at-height hazards, and assigning real, signable controls for temporary overpasses.

A Temporary Ramps AHA — breaking the task into steps, identifying structural-capacity/failure, slope-and-surface/slip, and edge-fall/loading hazards, and assigning real, signable controls for temporary ramps.

A Temporary Runarounds AHA — breaking the task into steps, identifying live-traffic-transition/work-zone, roadway-surface/geometry, and construction-adjacent-traffic hazards, and assigning real, signable controls for temporary runarounds.

A Tower Shoring AHA — breaking the task into steps, identifying shoring-capacity/collapse, erection-at-height/plumb-and-bracing, and load-transfer/removal hazards, and assigning real, signable controls for tower shoring.

A Swing-Stage Scaffolding AHA — breaking the task into steps, identifying suspension-failure/fall, rigging-and-support/roof-anchor, and independent-fall-arrest hazards, and assigning real, signable controls for swing-stage scaffolding.

A Concrete Batch Plant AHA — breaking the task into steps, identifying moving-equipment/mobile-plant-traffic, silica-and-cement-dust/caustic, and machinery/conveyor-and-mixer hazards, and assigning real, signable controls for concrete batch plant operations.

A Pump Jack Scaffolding AHA — breaking the task into steps, identifying pole-and-jack-failure/fall, overload/capacity, and pole-bracing/installation hazards, and assigning real, signable controls for pump jack scaffolding.

A Vehicular Access and Parking AHA — breaking the task into steps, identifying vehicle-pedestrian-interface/struck-by, traffic-flow-and-layout, and backing-and-blind-spot hazards, and assigning real, signable controls for vehicular access and parking.

A Temporary Access Roads AHA — breaking the task into steps, identifying construction-equipment/roadbuilding, road-stability-and-surface/failure, and haul-traffic/struck-by hazards, and assigning real, signable controls for temporary access roads.

A Temporary Parking Areas AHA — breaking the task into steps, identifying pedestrian-vehicle-interface/struck-by, surface-and-grade/stability, and lighting-and-layout hazards, and assigning real, signable controls for temporary parking areas.

A Temporary Roads AHA — breaking the task into steps, identifying roadbuilding-equipment, road-adequacy-and-stability/failure, and public-and-site-traffic hazards, and assigning real, signable controls for temporary roads.

A Traffic Control AHA — breaking the task into steps, identifying flagger-and-worker-exposure/struck-by, device-setup-and-removal/in-traffic, and traffic-control-plan-adequacy hazards, and assigning real, signable controls for traffic control.

A Temporary Barriers and Enclosures AHA — breaking the task into steps, identifying installation-handling/at-height, barrier-stability/wind, and barrier-adequacy-as-a-protection-function hazards, and assigning real, signable controls for temporary barriers and enclosures.

A Temporary Air Barriers AHA — breaking the task into steps, identifying containment-integrity/pressure-differential, at-height-installation, and confined-atmosphere/ventilation hazards, and assigning real, signable controls for temporary air barriers.

A Temporary Dust Barriers AHA — breaking the task into steps, identifying dust-containment-integrity/exposure, at-height-installation, and egress-and-fire/enclosure hazards, and assigning real, signable controls for temporary dust barriers.

A Temporary Noise Barriers AHA — breaking the task into steps, identifying panel-handling/at-height, barrier-stability/wind, and noise-exposure-during-work hazards, and assigning real, signable controls for temporary noise barriers.

A Temporary Fences AHA — breaking the task into steps, identifying post-driving-and-installation/handling, fence-stability/wind, and site-security-perimeter-function hazards, and assigning real, signable controls for temporary fences.

A Temporary Protective Walkways AHA — breaking the task into steps, identifying overhead-protection/falling-object, structural-capacity, and pedestrian-egress-and-flow hazards, and assigning real, signable controls for temporary protective walkways.

A Temporary Security Barriers AHA — breaking the task into steps, identifying heavy-barrier-placement/rigging, vehicle-impact-rating/security-function, and stability-and-installation hazards, and assigning real, signable controls for temporary security barriers.

A Temporary Security Enclosures AHA — breaking the task into steps, identifying enclosure-integrity/security-function, access-control-and-egress-balance, and installation-and-handling hazards, and assigning real, signable controls for temporary security enclosures.

A Temporary Controls AHA — breaking the task into steps, identifying control-adequacy-as-a-protection-function, multi-control-coordination, and maintenance-and-monitoring hazards, and assigning real, signable controls for temporary controls.

A Temp. Erosion & Sediment Control AHA — breaking the task into steps, identifying installation-equipment-and-terrain, water-and-slope/drainage, and control-effectiveness-as-an-environmental-function hazards, and assigning real, signable controls for temporary erosion and sediment control.

A Temp. Environmental Controls AHA — breaking the task into steps, identifying control-effectiveness-as-an-environmental-function, spill-and-contaminant-handling, and multi-control-coordination-and-monitoring hazards, and assigning real, signable controls for temporary environmental controls.

A Temp. Storm Water Pollution Cont. AHA — breaking the task into steps, identifying water-and-flow/drainage, control-effectiveness-and-permit-compliance, and installation-terrain-and-inspection hazards, and assigning real, signable controls for temporary stormwater pollution control.

A Project Identification AHA — breaking the task into steps, identifying sign-installation/at-height-and-handling, post-setting/utility-strike, and wind-load-and-stability hazards, and assigning real, signable controls for project identification signage.

A Temporary Project Signage AHA — breaking the task into steps, identifying sign-installation/at-height-and-traffic, sign-adequacy-as-a-safety-communication-function, and post-setting-and-wind hazards, and assigning real, signable controls for temporary project signage.

A Mobilization AHA — breaking the task into steps, identifying equipment-and-material-delivery/transport, setup-rigging-and-heavy-lifts, and new-site-unknown-conditions hazards, and assigning real, signable controls for mobilization.

A De-Mobilization AHA — breaking the task into steps, identifying teardown-rigging-and-loading, removal-of-controls-while-work-continues, and site-restoration-and-final-hazards hazards, and assigning real, signable controls for de-mobilization.

A Field Engineering AHA — breaking the task into steps, identifying active-work-area-access, layout-accuracy-as-a-safety-and-quality-function, and terrain-and-equipment-exposure hazards, and assigning real, signable controls for field engineering.

A Construction Layout AHA — breaking the task into steps, identifying active-work-area-access, layout-accuracy-controlling-the-work, and stake-setting-and-terrain hazards, and assigning real, signable controls for construction layout.

A Construction Surveying AHA — breaking the task into steps, identifying active-site-and-traffic-access, terrain-and-environmental, and survey-accuracy-controlling-the-work hazards, and assigning real, signable controls for construction surveying.

A Site Maintenance and Cleaning AHA — breaking the task into steps, identifying housekeeping-and-slip-trip/debris, manual-handling-and-repetitive, and cleaning-chemical-and-dust hazards, and assigning real, signable controls for site maintenance and cleaning.

A Construction Waste Management AHA — breaking the task into steps, identifying waste-handling-and-sharps/hazardous-material, container-and-equipment/loading, and hazardous-waste-classification-and-compliance hazards, and assigning real, signable controls for construction waste management.

A Final Cleaning AHA — breaking the task into steps, identifying cleaning-chemical-exposure, at-height-and-ladder-cleaning, and slip-and-wet-surface hazards, and assigning real, signable controls for final cleaning.

A Conveying Equipment Performance AHA — breaking the task into steps, identifying live-equipment-testing/motion, hoistway-and-at-height/fall, and stored-energy-and-entrapment hazards, and assigning real, signable controls for conveying equipment performance testing.

A Fire Suppression Performance Req. AHA — breaking the task into steps, identifying system-charging/pressurized-water-and-agent, agent-discharge/atmosphere, and at-height-and-impairment hazards, and assigning real, signable controls for fire suppression performance testing.

A Plumbing Performance Req. AHA — breaking the task into steps, identifying pressure-testing/stored-energy, hot-water-and-scald/thermal, and water-discharge-and-slip hazards, and assigning real, signable controls for plumbing performance testing.

A HVAC Performance Requirements AHA — breaking the task into steps, identifying rotating-equipment-and-live-testing, refrigerant-and-pressurized-system, and at-height-and-testing-access hazards, and assigning real, signable controls for HVAC performance testing.

A Integrated Automation Perf Req. AHA — breaking the task into steps, identifying unexpected-equipment-actuation/controlled-systems, cause-and-effect-testing/safety-function, and multi-system-coordination hazards, and assigning real, signable controls for integrated automation performance testing.

A Electrical Performance Req. AHA — breaking the task into steps, identifying energization/live-electrical-and-arc-flash, stored-energy-and-testing, and unexpected-energization/coordination hazards, and assigning real, signable controls for electrical performance testing.

A Commissioning AHA — breaking the task into steps, identifying first-energization-and-system-startup/live-systems, transition-from-construction-to-live/coordination, and multi-system-and-stored-energy hazards, and assigning real, signable controls for commissioning.

A Geophysical Investigations AHA — breaking the task into steps, identifying terrain-and-access, equipment-and-energy-source, and traffic-and-environmental hazards, and assigning real, signable controls for geophysical investigations.

A Magnetic Investigations - Gas Line Detection AHA — breaking the task into steps, identifying detection-accuracy-as-a-gas-line-safety-function, terrain-and-traffic-access, and equipment-and-interpretation hazards, and assigning real, signable controls for magnetic investigations and gas line detection.

A Geotechnical Investigations AHA — breaking the task into steps, identifying drilling-and-boring-equipment/rotating-and-struck-by, utility-strike-and-ground-penetration, and test-pit-excavation-and-terrain hazards, and assigning real, signable controls for geotechnical investigations.

A Subsurface Drilling and Sampling AHA — breaking the task into steps, identifying rotating-drill-string-and-caught-in, utility-strike-and-boring-clearance, and mast-overhead-and-sampling hazards, and assigning real, signable controls for subsurface drilling and sampling.

A Exploratory Excavations AHA — breaking the task into steps, identifying cave-in-and-excavation-entry, utility-strike-during-excavation, and equipment-and-spoil/access hazards, and assigning real, signable controls for exploratory excavations.

A Selective Site Demolition AHA — breaking the task into steps, identifying utility-and-existing-condition-hazards, structural-stability-during-selective-removal, and equipment-and-debris hazards, and assigning real, signable controls for selective site demolition.

A Paving Removal AHA — breaking the task into steps, identifying breaking-equipment-and-silica-dust, utility-strike-beneath-pavement, and equipment-traffic-and-debris hazards, and assigning real, signable controls for paving removal.

A Structure Demolition AHA — breaking the task into steps, identifying structural-collapse-and-sequence, pre-demolition-survey-and-hazardous-materials, and demolition-equipment-and-debris/falling-material hazards, and assigning real, signable controls for structure demolition.

A Building Demolition AHA — breaking the task into steps, identifying structural-collapse-and-floor-loading, pre-demolition-and-hazardous-materials-survey, and falling-debris-and-worker-position hazards, and assigning real, signable controls for building demolition.

A Tower Demolition AHA — breaking the task into steps, identifying height-and-fall/dismantling-at-height, controlled-collapse-and-drop-zone, and rigging-and-lowering-of-sections hazards, and assigning real, signable controls for tower demolition.

A Selective Demolition AHA — breaking the task into steps, identifying structural-stability-of-what-remains, hidden-conditions-and-utilities-in-existing-construction, and demolition-methods-and-debris hazards, and assigning real, signable controls for selective demolition.

A Selective Building Demolition AHA — breaking the task into steps, identifying load-bearing-element-removal-and-stability, occupied-building-and-adjacent-operations, and hidden-utilities-and-hazmat hazards, and assigning real, signable controls for selective building demolition.

A Selective Interior Demolition AHA — breaking the task into steps, identifying concealed-utilities-in-walls-ceilings-floors, overhead-and-material-handling-in-confined-interior, and dust-and-occupied-space hazards, and assigning real, signable controls for selective interior demolition.

A Deconstruction of Structures AHA — breaking the task into steps, identifying manual-dismantling-and-at-height, structural-stability-during-piece-by-piece-removal, and material-handling-and-salvage hazards, and assigning real, signable controls for deconstruction of structures.

A Deconstruction of Buildings AHA — breaking the task into steps, identifying at-height-and-floor-by-floor-dismantling, building-stability-during-progressive-removal, and salvage-material-handling-and-hazmat hazards, and assigning real, signable controls for deconstruction of buildings.

A Structure Raising AHA — breaking the task into steps, identifying jacking-and-load-stability/synchronization, cribbing-and-temporary-support, and working-under-a-raised-load hazards, and assigning real, signable controls for structure raising.

A Building Raising AHA — breaking the task into steps, identifying synchronized-jacking-and-building-stability, cribbing-and-working-under-the-building, and utility-and-structural-connection hazards, and assigning real, signable controls for building raising.

A Site Remediation AHA — breaking the task into steps, identifying contaminant-exposure-and-hazwoper, excavation-and-contaminated-material-handling, and site-control-and-decontamination hazards, and assigning real, signable controls for site remediation.

A High-Pressure Water Cleaning AHA — breaking the task into steps, identifying high-pressure-water-injection-and-injury, hose-and-fitting-failure/whip, and reaction-force-and-footing hazards, and assigning real, signable controls for high-pressure water cleaning.

A Vacuum Sweeping Cleaning Decontamination AHA — breaking the task into steps, identifying hazardous-material-and-contaminant-handling, vacuum-equipment-and-confined-space, and decontamination-effectiveness hazards, and assigning real, signable controls for vacuum sweeping, cleaning, and decontamination.

A Surface Removal Decontamination by Sand Blasting AHA — breaking the task into steps, identifying abrasive-and-coating-dust-inhalation/silica, blast-stream-and-flying-debris, and contaminated-abrasive-and-spent-media hazards, and assigning real, signable controls for surface removal decontamination by sand blasting.

A Underground Storage Tank Removal AHA — breaking the task into steps, identifying flammable-vapor-and-explosion, excavation-and-tank-lifting, and contaminated-soil-and-product hazards, and assigning real, signable controls for underground storage tank removal.

A Decommissioning Fuel Lines AHA — breaking the task into steps, identifying residual-fuel-and-flammable-vapor, line-purging-and-isolation, and cutting/hot-work-ignition hazards, and assigning real, signable controls for decommissioning fuel lines.

A Transportation and Disposal of Hazardous Materials AHA — breaking the task into steps, identifying loading-handling-and-exposure, transport-containment-and-regulatory-compliance, and manifest-and-disposal-chain hazards, and assigning real, signable controls for transportation and disposal of hazardous materials.

A Removal and Disposal of Universal Hazardous Waste AHA — breaking the task into steps, identifying breakage-and-content-release/exposure, identification-and-segregation, and accumulation-and-disposal-compliance hazards, and assigning real, signable controls for removal and disposal of universal hazardous waste.

A Asbestos Abatement AHA — breaking the task into steps, identifying fiber-release-and-inhalation, containment-and-negative-air, and decontamination-and-worker-protection hazards, and assigning real, signable controls for asbestos abatement.

A Engineering Control of Asbestos Containing Materials AHA — breaking the task into steps, identifying disturbance-during-encapsulation-enclosure, control-integrity-and-management-in-place, and worker-protection-during-application hazards, and assigning real, signable controls for engineering control of asbestos-containing materials.

A Removal and Disposal of Lead Containing Material AHA — breaking the task into steps, identifying lead-dust-generation-and-exposure, containment-and-ingestion/hygiene, and lead-waste-characterization-and-disposal hazards, and assigning real, signable controls for removal and disposal of lead-containing material.

A Removal and Disposal of Polychlorinate Biphenyl Materials AHA — breaking the task into steps, identifying pcb-dermal-contact-and-exposure, electrical-equipment-and-source-removal, and tsca-disposal-and-manifest hazards, and assigning real, signable controls for removal and disposal of PCB materials.

A Removal and Disposal of Polychorinate Biphenyl Contamination AHA — breaking the task into steps, identifying pcb-contaminated-media-and-dermal-exposure, contamination-extent-and-spread-control, and tsca-cleanup-and-verification hazards, and assigning real, signable controls for removal and disposal of PCB contamination.

A Mold Remediation AHA — breaking the task into steps, identifying mold-exposure-and-respiratory, containment-and-cross-contamination, and moisture-source-and-material-removal hazards, and assigning real, signable controls for mold remediation.

A Resurfacing of Cast-in-Place Concrete AHA — breaking the task into steps, identifying surface-preparation-dust-and-silica, overlay-material-and-chemical, and surface-condition-and-bond hazards, and assigning real, signable controls for resurfacing of cast-in-place concrete.

A Selective Demolition for Concrete AHA — breaking the task into steps, identifying concrete-breaking-silica-and-noise/vibration, embedded-reinforcement-and-utility, and structural-stability-of-remaining-concrete hazards, and assigning real, signable controls for selective demolition for concrete.

A Concrete Forming AHA — breaking the task into steps, identifying formwork-structural-stability-and-collapse, form-handling-and-erection-at-height, and stripping-and-form-material hazards, and assigning real, signable controls for concrete forming.

A Structural Cast-in-Place C.F. AHA — breaking the task into steps, identifying structural-formwork-load-and-collapse, rebar-placement-and-impalement/at-height, and concrete-placement-and-loads hazards, and assigning real, signable controls for structural cast-in-place concrete forming.

A Temporary Concrete Shoring AHA — breaking the task into steps, identifying shoring-load-capacity-and-collapse, reshoring-and-premature-removal, and erection-stability-and-at-height hazards, and assigning real, signable controls for temporary concrete shoring.

A Architectural Cast-in-Place C.F. AHA — breaking the task into steps, identifying complex-formwork-and-stability, form-liner-release-agents-and-chemical, and finish-handling-and-at-height hazards, and assigning real, signable controls for architectural cast-in-place concrete forming.

A Insulated Concrete Forming AHA — breaking the task into steps, identifying icf-bracing-and-blowout/stability, controlled-concrete-placement-into-icf, and foam-form-handling-and-cutting hazards, and assigning real, signable controls for insulated concrete forming.

A Concrete Accessories AHA — breaking the task into steps, identifying embed-and-anchor-installation-and-struck-by, waterstop-and-form-accessory-handling, and post-installed-anchor-drilling-silica hazards, and assigning real, signable controls for concrete accessories.

A Concrete Construction Joints AHA — breaking the task into steps, identifying joint-surface-preparation-silica, waterstop-and-dowel/embedment-installation, and joint-forming-and-placement-sequence hazards, and assigning real, signable controls for concrete construction joints.

A Concrete Reinforcement-Grade AHA — breaking the task into steps, identifying rebar-impalement-and-protruding-ends, rebar-handling-and-material-weight, and tying-ergonomics-and-sharps hazards, and assigning real, signable controls for grade concrete reinforcement.

A Concrete Reinforcement-Elevated AHA — breaking the task into steps, identifying fall-from-elevated-reinforcement-work, hoisting-and-placing-rebar-at-height, and impalement-and-deck-opening hazards, and assigning real, signable controls for elevated concrete reinforcement.

A Reinforcement Bars AHA — breaking the task into steps, identifying bar-fabrication-cutting-and-bending, bar-handling-and-storage/struck-by, and placement-impalement-and-tying hazards, and assigning real, signable controls for reinforcement bars.

A Fabric and Grid Reinforcing AHA — breaking the task into steps, identifying rolled-mesh-spring-and-recoil, cutting-and-sharp-mesh-ends, and handling-and-placement-ergonomics hazards, and assigning real, signable controls for fabric and grid reinforcing.

A Cast-in-Place Concrete AHA — breaking the task into steps, identifying concrete-placement-and-pump/equipment, wet-concrete-chemical-burns-and-contact, and formwork-load-and-finishing hazards, and assigning real, signable controls for cast-in-place concrete.

A Misc. Cast-in-Place Concrete AHA — breaking the task into steps, identifying small-pour-placement-and-contact, varied-location-access-and-manual-handling, and equipment-pad-and-housekeeping-concrete hazards, and assigning real, signable controls for miscellaneous cast-in-place concrete.

A Structural Concrete AHA — breaking the task into steps, identifying structural-formwork-shoring-load-and-collapse, large-pour-placement-and-formwork-monitoring, and elevated-structural-work-and-fall hazards, and assigning real, signable controls for structural concrete.

A Marine Concrete AHA — breaking the task into steps, identifying drowning-and-water-work, over-water-and-marine-access/formwork, and tidal-current-and-placement-timing hazards, and assigning real, signable controls for marine concrete.

A Architectural Concrete AHA — breaking the task into steps, identifying finish-chemicals-release-agents-and-treatments, careful-placement-and-vibration/finishing, and complex-formwork-and-handling hazards, and assigning real, signable controls for architectural concrete.

A Heavyweight Architectural Concrete AHA — breaking the task into steps, identifying heavyweight-aggregate-load-and-formwork, heavy-material-handling-and-placement, and radiation-shielding-integrity-and-finish hazards, and assigning real, signable controls for heavyweight architectural concrete.

A Lightweight Architectural Concrete AHA — breaking the task into steps, identifying lightweight-aggregate-dust-and-handling, pumping-and-placement-behavior, and finish-and-formwork hazards, and assigning real, signable controls for lightweight architectural concrete.

A Concrete Finishing AHA — breaking the task into steps, identifying wet-concrete-contact-and-chemical-burns, finishing-ergonomics-and-repetitive-strain, and power-trowel-and-equipment hazards, and assigning real, signable controls for concrete finishing.

A Stamped Concrete Finishing AHA — breaking the task into steps, identifying color-hardener-and-release-agent-dust/chemical, stamping-timing-and-ergonomics, and wet-concrete-contact-and-sealing hazards, and assigning real, signable controls for stamped concrete finishing.

A Shotcrete AHA — breaking the task into steps, identifying high-velocity-nozzle-and-rebound/eye-injury, hose-and-line-pressure/blockage, and dust-silica-and-nozzle-ergonomics hazards, and assigning real, signable controls for shotcrete.

A Pneumatically Placed Concrete AHA — breaking the task into steps, identifying compressed-air-and-pressurized-system, high-velocity-placement-and-rebound, and dust-and-line-blockage hazards, and assigning real, signable controls for pneumatically placed concrete.

A Underwater Placed Concrete AHA — breaking the task into steps, identifying diving-and-underwater-work, tremie-and-placement-equipment, and drowning-and-over-water hazards, and assigning real, signable controls for underwater placed concrete.

A Post-Tension Concrete AHA — breaking the task into steps, identifying tendon-stressing-and-stored-energy/blowout, tendon-end-and-jacking-position, and cutting-into-post-tensioned-concrete hazards, and assigning real, signable controls for post-tension concrete.

A Chemical Concrete Sealer AHA — breaking the task into steps, identifying solvent-and-voc-vapor/flammability, skin-eye-contact-and-chemical, and application-in-enclosed-spaces/ventilation hazards, and assigning real, signable controls for chemical concrete sealer.

A Chemical Compound Membrane Concrete Curing AHA — breaking the task into steps, identifying curing-compound-spray-and-overspray/inhalation, solvent-voc-and-flammability, and large-area-application-ergonomics hazards, and assigning real, signable controls for chemical compound membrane concrete curing.

A Chemical Penetrating Treatments for Polished Concrete AHA — breaking the task into steps, identifying densifier-and-alkaline-chemical-contact, polishing-silica-dust-and-slurry, and equipment-and-slip hazards, and assigning real, signable controls for chemical penetrating treatments for polished concrete.

A Precast Structural Concrete AHA — breaking the task into steps, identifying rigging-and-crane-lift-of-heavy-panels, connection-and-bracing-stability-during-erection, and struck-by-and-crush-during-setting hazards, and assigning real, signable controls for precast structural concrete.

A Plant-Precast Concrete Products for Below Grade Construction AHA — breaking the task into steps, identifying excavation-and-setting-precast-below-grade, rigging-into-the-excavation-and-crush, and confined-space-entry-of-precast-structures hazards, and assigning real, signable controls for plant-precast concrete products for below-grade construction.

A Tilt-Up Concrete AHA — breaking the task into steps, identifying panel-lifting-tilting-and-rigging, bracing-until-connected/panel-stability, and casting-slab-and-embed hazards, and assigning real, signable controls for tilt-up concrete.

A Brace Removal on Tilt-Up Concrete Walls AHA — breaking the task into steps, identifying premature-brace-removal-and-panel-collapse, connection-and-diaphragm-completion-verification, and brace-handling-and-at-height hazards, and assigning real, signable controls for brace removal on tilt-up concrete walls.

A Precast Concrete Burial Crypts AHA — breaking the task into steps, identifying rigging-and-setting-heavy-crypt-units/crush, excavation-and-below-grade-setting, and cemetery-site-access-and-stacking-stability hazards, and assigning real, signable controls for precast concrete burial crypts.

A Gypsum Cement Underlayment AHA — breaking the task into steps, identifying pumped-self-leveling-placement-and-hose, mixing-dust-and-chemical-contact, and slip-and-wet-floor/ergonomics hazards, and assigning real, signable controls for gypsum cement underlayment.

A Grouting AHA — breaking the task into steps, identifying grout-material-chemical-and-contact, mixing-dust-silica-and-injection-pressure, and confined-access-and-ergonomics hazards, and assigning real, signable controls for grouting.

A Cementitious Grouting AHA — breaking the task into steps, identifying caustic-cement-contact-and-burns, mixing-dust-and-silica, and confined-access-and-ergonomics hazards, and assigning real, signable controls for cementitious grouting.

A Dry-Pack Grouting AHA — breaking the task into steps, identifying manual-packing-and-tamping-ergonomics, caustic-cement-hand-contact, and mixing-dust-and-confined-access hazards, and assigning real, signable controls for dry-pack grouting.

A Non-Shrink Grouting AHA — breaking the task into steps, identifying under-baseplate-and-equipment-grouting-access, caustic-cement-contact-and-mixing-dust, and flowable-placement-and-confined-ergonomics hazards, and assigning real, signable controls for non-shrink grouting.

A Metallic Non-Shrink Grouting AHA — breaking the task into steps, identifying metallic-aggregate-and-oxidizing-chemistry, caustic-cement-contact-and-mixing-dust, and under-baseplate-access-and-ergonomics hazards, and assigning real, signable controls for metallic non-shrink grouting.

A Mass Concrete for Raft Foundations AHA — breaking the task into steps, identifying large-continuous-pour-and-logistics, thermal-and-heat-of-hydration, and formwork-rebar-and-placement-access hazards, and assigning real, signable controls for mass concrete for raft foundations.

A Saw Cut Concrete AC AHA — breaking the task into steps, identifying silica-dust-from-dry-cutting, saw-blade-and-kickback, and asphalt-concrete-and-roadway hazards, and assigning real, signable controls for saw cut concrete AC (asphalt concrete).

A Flat Concrete Sawing AHA — breaking the task into steps, identifying silica-dust-from-slab-cutting, walk-behind-saw-operation-and-kickback, and blade-and-cut-line hazards, and assigning real, signable controls for flat concrete sawing.

A Hand Concrete Wall Sawing AHA — breaking the task into steps, identifying handheld-saw-kickback-and-blade-contact, silica-dust-in-often-enclosed-work, and cut-piece-fall-and-position hazards, and assigning real, signable controls for hand concrete wall sawing.

A Concrete Floor Grinding AHA — breaking the task into steps, identifying silica-dust-from-grinding, grinder-equipment-and-electrical, and slip-slurry-and-ergonomics hazards, and assigning real, signable controls for concrete floor grinding.

A Concrete Boring AHA — breaking the task into steps, identifying core-bit-binding-and-drill-reaction, silica-dust-and-core-slug, and embedded-utilities-and-electrical hazards, and assigning real, signable controls for concrete boring.

A Maintenance of Unit Masonry AHA — breaking the task into steps, identifying tuckpointing-and-mortar-removal-silica-dust, access-and-work-at-height, and material-handling-and-masonry-stability hazards, and assigning real, signable controls for maintenance of unit masonry.

A Maintenance of Stone Assemblies AHA — breaking the task into steps, identifying heavy-stone-handling-and-anchorage-stability, cutting-grinding-silica-dust, and access-and-work-at-height hazards, and assigning real, signable controls for maintenance of stone assemblies.

A Common Work Results for Masonry AHA — breaking the task into steps, identifying mortar-and-masonry-silica-and-caustic-contact, masonry-wall-and-scaffold-access/stability, and material-handling-and-ergonomics hazards, and assigning real, signable controls for common work results for masonry.

A Masonry Grouting AHA — breaking the task into steps, identifying grout-pour-and-cell-filling/blowout, caustic-grout-contact-and-mixing-dust, and scaffold-access-and-wall-stability hazards, and assigning real, signable controls for masonry grouting.

A Masonry Anchorage & Reinforcement AHA — breaking the task into steps, identifying reinforcement-handling-and-impalement, drilling-anchors-and-silica-dust, and scaffold-access-and-wall-stability hazards, and assigning real, signable controls for masonry anchorage and reinforcement.

A Abrasive Blasting of Masonry AHA — breaking the task into steps, identifying respirable-silica-from-blasting, blast-media-and-high-pressure-stream, and containment-ventilation-and-access hazards, and assigning real, signable controls for abrasive blasting of masonry.

A Unit Masonry AHA — breaking the task into steps, identifying masonry-wall-stability-and-collapse, mortar-caustic-contact-and-cutting-silica, and scaffold-access-and-material-handling hazards, and assigning real, signable controls for unit masonry.

A Clay Unit Masonry AHA — breaking the task into steps, identifying clay-unit-cutting-silica-dust, masonry-wall-stability-and-collapse, and mortar-contact-and-scaffold-access hazards, and assigning real, signable controls for clay unit masonry.

A Brick Masonry AHA — breaking the task into steps, identifying brick-cutting-silica-dust, masonry-wall-stability-and-collapse, and mortar-contact-and-repetitive-ergonomics hazards, and assigning real, signable controls for brick masonry.

A Brick Veneer Masonry AHA — breaking the task into steps, identifying veneer-tie-anchorage-and-stability, scaffold-facade-access-and-fall, and brick-cutting-silica-and-mortar-contact hazards, and assigning real, signable controls for brick veneer masonry.

A Glazed Structural Clay Tile Masonry AHA — breaking the task into steps, identifying cutting-silica-and-glazed-shard, masonry-wall-stability-and-collapse, and mortar-contact-and-scaffold-access hazards, and assigning real, signable controls for glazed structural clay tile masonry.

A Terra Cotta Masonry AHA — breaking the task into steps, identifying heavy-terra-cotta-unit-handling-and-anchorage, facade-access-and-falling-unit, and cutting-silica-and-mortar-contact hazards, and assigning real, signable controls for terra cotta masonry.

A Concrete Unit Masonry AHA — breaking the task into steps, identifying heavy-block-handling-and-ergonomics, masonry-wall-stability-and-collapse, and block-cutting-silica-and-mortar-contact hazards, and assigning real, signable controls for concrete unit masonry.

A Architectural Concrete Unit Masonry AHA — breaking the task into steps, identifying heavy-architectural-block-handling, masonry-wall-stability-and-collapse, and block-cutting-silica-and-mortar-contact hazards, and assigning real, signable controls for architectural concrete unit masonry.

A Exposed Aggregate Concrete Unit Masonry AHA — breaking the task into steps, identifying heavy-block-handling-and-abrasive-face, masonry-wall-stability-and-collapse, and block-cutting-silica-and-mortar-contact hazards, and assigning real, signable controls for exposed aggregate concrete unit masonry.

A Fluted Concrete Unit Masonry AHA — breaking the task into steps, identifying heavy-block-handling-and-cutting-through-flutes, masonry-wall-stability-and-collapse, and cutting-silica-and-mortar-contact hazards, and assigning real, signable controls for fluted concrete unit masonry.

A Split-Faced Concrete Unit Masonry AHA — breaking the task into steps, identifying sharp-rough-split-face-and-heavy-handling, masonry-wall-stability-and-collapse, and cutting-silica-and-mortar-contact hazards, and assigning real, signable controls for split-faced concrete unit masonry.

A Glass Unit Masonry AHA — breaking the task into steps, identifying glass-block-breakage-and-laceration, panel-stability-and-support-limits, and mortar-contact-and-scaffold-access hazards, and assigning real, signable controls for glass unit masonry.

A Stone Assemblies AHA — breaking the task into steps, identifying heavy-stone-handling-and-rigging, anchorage-and-panel-stability, and cutting-silica-and-scaffold-access hazards, and assigning real, signable controls for stone assemblies.

A Exterior Stone Cladding AHA — breaking the task into steps, identifying facade-anchorage-and-falling-cladding, heavy-stone-handling-at-height, and cutting-silica-and-fall hazards, and assigning real, signable controls for exterior stone cladding.

A Stone Masonry AHA — breaking the task into steps, identifying heavy-stone-handling-and-ergonomics, masonry-wall-stability-and-collapse, and stone-cutting-silica-and-mortar-contact hazards, and assigning real, signable controls for stone masonry.

A Stone Masonry Veneer AHA — breaking the task into steps, identifying veneer-tie-anchorage-and-stability, heavy-stone-handling-and-facade-access, and cutting-silica-and-mortar-contact hazards, and assigning real, signable controls for stone masonry veneer.

A Post-Installed Concrete Anchors AHA — breaking the task into steps, identifying drilling-silica-dust-and-hole-preparation, adhesive-chemical-and-anchor-installation, and anchor-capacity-and-overhead-failure hazards, and assigning real, signable controls for post-installed concrete anchors.

A Structural Welding AHA — breaking the task into steps, identifying arc-radiation-and-electric-shock, welding-fume-and-respiratory, and fire-hot-work-and-at-height hazards, and assigning real, signable controls for structural welding.

A Structural Metal Framing AHA — breaking the task into steps, identifying fall-from-height-during-erection, structural-stability-during-erection, and rigging-crane-and-struck-by hazards, and assigning real, signable controls for structural metal framing.

A Structural Steel Framing AHA — breaking the task into steps, identifying connector-fall-from-height, erection-stability-and-connection-sequence, and crane-rigging-and-struck-by hazards, and assigning real, signable controls for structural steel framing.

A Structural Steel for Buildings AHA — breaking the task into steps, identifying multi-story-fall-and-leading-edge, building-frame-stability-and-sequence, and crane-lift-and-struck-by hazards, and assigning real, signable controls for structural steel for buildings.

A Longspan Steel Joist Framing AHA — breaking the task into steps, identifying joist-stability-and-bridging-before-loading, fall-from-height-on-joists, and rigging-and-erection-sequence hazards, and assigning real, signable controls for longspan steel joist framing.

A Metal Decking AHA — breaking the task into steps, identifying fall-through-and-off-unsecured-deck, deck-bundle-handling-and-rigging, and cutting-welding-and-sharp-edge hazards, and assigning real, signable controls for metal decking.

A Cold-Formed Metal Framing AHA — breaking the task into steps, identifying sharp-edge-lacerations-and-cutting, fall-and-at-height-framing, and screw-gun-ergonomics-and-material-handling hazards, and assigning real, signable controls for cold-formed metal framing.

A Cold-Formed Metal Trusses AHA — breaking the task into steps, identifying truss-stability-and-bracing-during-erection, fall-and-at-height-truss-work, and sharp-edge-and-handling hazards, and assigning real, signable controls for cold-formed metal trusses.

A Metal Fabrications AHA — breaking the task into steps, identifying cutting-grinding-welding-and-hot-work, sharp-edge-and-heavy-material-handling, and installation-at-height-and-rigging hazards, and assigning real, signable controls for metal fabrications.

A Miscellaneous Metal Fabrications AHA — breaking the task into steps, identifying varied-item-cutting-welding-and-hot-work, sharp-edge-and-awkward-handling, and diverse-installation-at-height-and-rigging hazards, and assigning real, signable controls for miscellaneous metal fabrications.

A Structural Steel Fabrications AHA — breaking the task into steps, identifying cutting-welding-and-hot-work, heavy-steel-handling-and-rigging, and grinding-sharp-edge-and-installation hazards, and assigning real, signable controls for structural steel fabrications.

A Metal Stairs AHA — breaking the task into steps, identifying heavy-stair-rigging-and-installation, fall-during-installation-and-open-risers, and welding-cutting-and-sharp-edge hazards, and assigning real, signable controls for metal stairs.

A Metal Pan Stairs AHA — breaking the task into steps, identifying concrete-fill-placement-and-caustic-contact, heavy-stair-rigging-and-fall-during-installation, and open-riser-and-welding hazards, and assigning real, signable controls for metal pan stairs.

A Metal Grating Stairs AHA — breaking the task into steps, identifying grating-sharp-edge-and-handling, heavy-stair-rigging-and-fall-during-installation, and open-riser-and-welding hazards, and assigning real, signable controls for metal grating stairs.

A Metal Ladders AHA — breaking the task into steps, identifying fall-during-installation-and-ladder-safety-features, fixed-ladder-anchorage-and-fall-protection-requirements, and welding-cutting-and-sharp-edge hazards, and assigning real, signable controls for metal ladders.

A Metal Railings AHA — breaking the task into steps, identifying railing-as-fall-protection-adequacy, fall-during-at-height-installation, and welding-cutting-and-sharp-edge hazards, and assigning real, signable controls for metal railings.

A Wood, Plastics, and Composites AHA — breaking the task into steps, identifying power-saw-and-tool-cuts, wood-and-composite-dust, and material-handling-and-fall hazards, and assigning real, signable controls for wood, plastics, and composites work.

A Rough Carpentry AHA — breaking the task into steps, identifying nail-gun-puncture-and-power-saw, fall-from-height-during-framing, and wood-dust-and-material-handling hazards, and assigning real, signable controls for rough carpentry.

A Miscellaneous Rough Carpentry AHA — breaking the task into steps, identifying varied-cutting-nailing-and-tool-cuts, awkward-handling-and-varied-at-height-work, and wood-dust-and-fall hazards, and assigning real, signable controls for miscellaneous rough carpentry.

An Exterior Rough Carpentry AHA — breaking the task into steps, identifying weather-exposed-at-height-fall, treated-lumber-chemical-and-dust, and power-saw-nail-gun-and-handling hazards, and assigning real, signable controls for exterior rough carpentry.

A Wood Framing AHA — breaking the task into steps, identifying fall-from-height-during-framing, nail-gun-and-power-saw, and wall-raising-and-material-handling hazards, and assigning real, signable controls for wood framing.

A Sheathing AHA — breaking the task into steps, identifying fall-through-and-off-at-height, panel-handling-and-wind, and power-saw-nail-gun-and-dust hazards, and assigning real, signable controls for sheathing.

A Wood Panel Product Sheathing AHA — breaking the task into steps, identifying fall-at-height-and-through-roof, plywood-osb-panel-handling-and-wind, and power-saw-nail-gun-and-wood-dust hazards, and assigning real, signable controls for wood panel product sheathing.

A Gypsum Sheathing AHA — breaking the task into steps, identifying fall-at-height-during-installation, gypsum-panel-handling-and-dust, and cutting-fastening-and-wind hazards, and assigning real, signable controls for gypsum sheathing.

A Moisture-Resistant Sheathing Board AHA — breaking the task into steps, identifying fall-at-height-during-installation, board-handling-and-dust, and cutting-fastening-and-wind hazards, and assigning real, signable controls for moisture-resistant sheathing board.

A Cementitious Sheathing AHA — breaking the task into steps, identifying fall-at-height-during-installation, cementitious-board-cutting-silica-dust, and heavy-board-handling-and-wind hazards, and assigning real, signable controls for cementitious sheathing.

A Laminated Veneer Lumber AHA — breaking the task into steps, identifying heavy-long-member-handling-and-rigging, fall-during-installation, and cutting-nailing-and-dust hazards, and assigning real, signable controls for laminated veneer lumber.

A Parallel Strand Lumber AHA — breaking the task into steps, identifying heavy-long-member-handling-and-rigging, fall-during-installation, and cutting-nailing-and-dust hazards, and assigning real, signable controls for parallel strand lumber.

A Pre-Manufactured Wood Trusses AHA — breaking the task into steps, identifying truss-stability-and-bracing-during-erection, fall-during-truss-erection, and truss-handling-and-rigging hazards, and assigning real, signable controls for pre-manufactured wood trusses.

A Glued-Laminated Construction AHA — breaking the task into steps, identifying heavy-glulam-member-rigging-and-erection, fall-during-erection, and member-stability-and-connection hazards, and assigning real, signable controls for glued-laminated construction.

A Glued-Laminated Beams AHA — breaking the task into steps, identifying heavy-long-beam-rigging-and-erection, fall-during-erection, and beam-stability-and-connection hazards, and assigning real, signable controls for glued-laminated beams.

A Glued-Laminated Columns AHA — breaking the task into steps, identifying heavy-column-rigging-and-erection, column-stability-and-anchorage, and fall-and-connection hazards, and assigning real, signable controls for glued-laminated columns.

A Finish Carpentry AHA — breaking the task into steps, identifying power-tool-and-nail-gun-cuts, wood-dust-and-adhesives, and ladder-and-ergonomic hazards, and assigning real, signable controls for finish carpentry.

An Exterior Finish Carpentry AHA — breaking the task into steps, identifying at-height-exterior-fall, power-tool-nail-gun-and-weather, and treated-material-dust-and-handling hazards, and assigning real, signable controls for exterior finish carpentry.

An Interior Finish Carpentry AHA — breaking the task into steps, identifying power-tool-and-nail-gun-cuts, interior-wood-dust-and-adhesives, and ladder-and-ergonomic hazards, and assigning real, signable controls for interior finish carpentry.

A Millwork AHA — breaking the task into steps, identifying woodworking-machine-and-power-tool-cuts, wood-dust-and-finish-chemicals, and heavy-millwork-handling-and-installation hazards, and assigning real, signable controls for millwork.

An Architectural Woodwork AHA — breaking the task into steps, identifying woodworking-machine-and-power-tool-cuts, wood-dust-and-finish-chemicals, and heavy-panel-handling-and-installation hazards, and assigning real, signable controls for architectural woodwork.

An Exterior Architectural Woodwork AHA — breaking the task into steps, identifying at-height-exterior-fall-and-panel-handling, woodworking-fabrication-cuts-and-dust, and weather-and-treated-material hazards, and assigning real, signable controls for exterior architectural woodwork.

An Interior Architectural Woodwork AHA — breaking the task into steps, identifying woodworking-machine-and-power-tool-cuts, interior-wood-dust-and-finish-chemicals, and heavy-panel-handling-and-installation hazards, and assigning real, signable controls for interior architectural woodwork.

An Architectural Casework AHA — breaking the task into steps, identifying woodworking-machine-and-power-tool-cuts, casework-handling-and-installation-ergonomics, and wood-dust-and-finish-chemicals hazards, and assigning real, signable controls for architectural casework.

A Wood-Veneer-Faced Architectural Cabinets AHA — breaking the task into steps, identifying woodworking-machine-and-power-tool-cuts, veneer-adhesive-and-wood-dust, and cabinet-handling-and-overhead-installation hazards, and assigning real, signable controls for wood-veneer-faced architectural cabinets.

A Plastic-Laminate-Clad Architectural Cabinets AHA — breaking the task into steps, identifying woodworking-machine-and-power-tool-cuts, contact-adhesive-and-laminate-sharp-edge, and cabinet-handling-and-overhead-installation hazards, and assigning real, signable controls for plastic-laminate-clad architectural cabinets.

A Cabinet and Drawer Hardware AHA — breaking the task into steps, identifying power-tool-and-hand-tool-injury, pinch-and-sharp-hardware, and ergonomic-and-repetitive-installation hazards, and assigning real, signable controls for cabinet and drawer hardware.

A Solid Surfacing Fabrications AHA — breaking the task into steps, identifying cutting-routing-dust-and-silica, adhesive-and-seaming-chemicals, and heavy-slab-handling-and-installation hazards, and assigning real, signable controls for solid surfacing fabrications.

A Fiberglass Reinforced Paneling - FRP AHA — breaking the task into steps, identifying adhesive-and-solvent-vapor, fiberglass-cutting-dust-and-irritation, and panel-handling-and-at-height-installation hazards, and assigning real, signable controls for fiberglass reinforced paneling.

A Preparation for Re-Roofing AHA — breaking the task into steps, identifying roof-fall-and-weakened-deck, tear-off-debris-and-hazardous-materials, and material-handling-and-weather hazards, and assigning real, signable controls for preparation for re-roofing.

A Dampproofing and Waterproofing AHA — breaking the task into steps, identifying coating-chemical-solvent-vapor-and-flammability, confined-space-and-below-grade-excavation, and skin-contact-and-hot-application hazards, and assigning real, signable controls for dampproofing and waterproofing.

A Dampproofing AHA — breaking the task into steps, identifying coating-chemical-solvent-vapor-and-flammability, below-grade-excavation-and-confined-space, and skin-contact-and-application hazards, and assigning real, signable controls for dampproofing.

A Bituminous Dampproofing AHA — breaking the task into steps, identifying bituminous-solvent-vapor-and-flammability, hot-asphalt-burn-and-fumes, and below-grade-excavation-and-skin-contact hazards, and assigning real, signable controls for bituminous dampproofing.

A Cementitious Dampproofing AHA — breaking the task into steps, identifying cement-caustic-contact-and-dust, below-grade-excavation-and-confined-space, and mixing-application-and-ergonomic hazards, and assigning real, signable controls for cementitious dampproofing.

A Sheet Dampproofing AHA — breaking the task into steps, identifying below-grade-excavation-and-confined-space, adhesive-and-membrane-handling, and sharp-tool-and-fall hazards, and assigning real, signable controls for sheet dampproofing.

A Built-Up Bituminous Waterproofing AHA — breaking the task into steps, identifying hot-bitumen-burn-and-fumes, kettle-and-hot-material-handling, and below-grade-fire-and-confined-space hazards, and assigning real, signable controls for built-up bituminous waterproofing.

A Built-Up Asphalt Waterproofing AHA — breaking the task into steps, identifying hot-asphalt-burn-and-fumes, kettle-and-hot-material-handling, and fire-and-confined-space hazards, and assigning real, signable controls for built-up asphalt waterproofing.

An Elastomeric Sheet Waterproofing AHA — breaking the task into steps, identifying adhesive-primer-and-seam-chemicals, below-grade-excavation-and-confined-space, and membrane-handling-and-sharp-tool hazards, and assigning real, signable controls for elastomeric sheet waterproofing.

A Fluid-Applied Waterproofing AHA — breaking the task into steps, identifying coating-chemical-solvent-vapor-and-spray, below-grade-excavation-and-confined-space, and skin-contact-and-application hazards, and assigning real, signable controls for fluid-applied waterproofing.

A Hot Fluid-Applied Rubberized Asphalt Waterproofing AHA — breaking the task into steps, identifying hot-rubberized-asphalt-burn-and-fumes, melter-kettle-and-hot-material-handling, and fire-and-confined-space hazards, and assigning real, signable controls for hot fluid-applied rubberized asphalt waterproofing.

A Cold Fluid-Applied Waterproofing AHA — breaking the task into steps, identifying reactive-and-solvent-coating-chemicals, below-grade-excavation-and-confined-space, and spray-mist-and-skin-contact hazards, and assigning real, signable controls for cold fluid-applied waterproofing.

A Bentonite Waterproofing AHA — breaking the task into steps, identifying below-grade-excavation-and-confined-space, bentonite-dust-and-slip, and material-handling-and-installation hazards, and assigning real, signable controls for bentonite waterproofing.

A Bentonite Panel Waterproofing AHA — breaking the task into steps, identifying below-grade-excavation-and-confined-space, panel-handling-and-fastening, and bentonite-dust-and-slip hazards, and assigning real, signable controls for bentonite panel waterproofing.

A Bentonite Composite Sheet Waterproofing AHA — breaking the task into steps, identifying below-grade-excavation-and-confined-space, sheet-handling-cutting-and-fastening, and bentonite-dust-and-slip hazards, and assigning real, signable controls for bentonite composite sheet waterproofing.

A Traffic Coatings AHA — breaking the task into steps, identifying coating-chemical-solvent-vapor-and-spray, at-height-deck-fall, and skin-contact-and-slip hazards, and assigning real, signable controls for traffic coatings.

A Water Repellents AHA — breaking the task into steps, identifying solvent-vapor-flammability-and-spray, at-height-application-fall, and skin-eye-contact-and-overspray hazards, and assigning real, signable controls for water repellents.

A Thermal Protection AHA — breaking the task into steps, identifying insulation-fiber-irritation-and-dust, at-height-and-access, and material-handling-and-cut hazards, and assigning real, signable controls for thermal protection.

A Thermal Insulation AHA — breaking the task into steps, identifying insulation-fiber-irritation-and-dust, at-height-and-overhead-installation, and material-handling-and-cut hazards, and assigning real, signable controls for thermal insulation.

A Board Insulation AHA — breaking the task into steps, identifying rigid-board-cutting-dust-and-adhesives, at-height-and-roof-fall, and board-handling-and-wind hazards, and assigning real, signable controls for board insulation.

A Foam Board Insulation AHA — breaking the task into steps, identifying foam-combustibility-and-cutting-dust, adhesive-and-solvent, and at-height-roof-fall-and-wind hazards, and assigning real, signable controls for foam board insulation.

A Fibrous Board Insulation AHA — breaking the task into steps, identifying fiber-irritation-and-cutting-dust, at-height-roof-fall-and-wind, and board-handling-and-adhesive hazards, and assigning real, signable controls for fibrous board insulation.

A Mineral Board Insulation AHA — breaking the task into steps, identifying mineral-fiber-irritation-and-dust, at-height-roof-fall-and-wind, and board-handling-and-high-temperature hazards, and assigning real, signable controls for mineral board insulation.

A Blanket Insulation AHA — breaking the task into steps, identifying fiber-irritation-and-dust, overhead-and-at-height-installation, and material-handling-and-cut hazards, and assigning real, signable controls for blanket insulation.

A Fiberglass Sound Batt Insulation AHA — breaking the task into steps, identifying fiberglass-fiber-irritation-and-dust, overhead-and-at-height-installation, and material-handling-and-cut hazards, and assigning real, signable controls for fiberglass sound batt insulation.

A Foamed-In-Place Insulation AHA — breaking the task into steps, identifying isocyanate-and-chemical-spray-exposure, confined-space-and-ventilation, and fire-and-skin-contact hazards, and assigning real, signable controls for foamed-in-place insulation.

A Loose-Fill Insulation AHA — breaking the task into steps, identifying loose-fill-dust-and-fiber-inhalation, attic-and-confined-access, and material-handling-and-machine hazards, and assigning real, signable controls for loose-fill insulation.

A Blown Insulation AHA — breaking the task into steps, identifying blowing-dust-and-fiber-inhalation, blowing-machine-and-hose, and attic-access-and-heat hazards, and assigning real, signable controls for blown insulation.

A Sprayed Insulation AHA — breaking the task into steps, identifying spray-chemical-and-fiber-exposure, overhead-spray-and-overspray, and at-height-access-and-fire hazards, and assigning real, signable controls for sprayed insulation.

A Reflective Insulation AHA — breaking the task into steps, identifying at-height-and-overhead-installation, sharp-edge-cut-and-handling, and glare-and-fastening hazards, and assigning real, signable controls for reflective insulation.

A Roof and Deck Insulation AHA — breaking the task into steps, identifying roof-fall-and-opening, board-handling-and-wind, and adhesive-fastening-and-hot-work hazards, and assigning real, signable controls for roof and deck insulation.

A Roof Board Insulation AHA — breaking the task into steps, identifying roof-fall-and-opening, board-handling-and-wind, and cutting-dust-fastening-and-hot-work hazards, and assigning real, signable controls for roof board insulation.

An Exterior Insulation and Finish Systems AHA — breaking the task into steps, identifying at-height-facade-fall, base-coat-mesh-and-finish-chemicals, and foam-cutting-and-material-handling hazards, and assigning real, signable controls for exterior insulation and finish systems (EIFS).

A Weather Barriers AHA — breaking the task into steps, identifying at-height-facade-and-wall-fall, wind-and-material-handling, and adhesive-sealant-and-fastening hazards, and assigning real, signable controls for weather barriers.

A Vapor Retarders AHA — breaking the task into steps, identifying at-height-and-overhead-installation, material-handling-and-cut, and adhesive-sealant-and-fastening hazards, and assigning real, signable controls for vapor retarders.

A Below-Grade Vapor Retarders AHA — breaking the task into steps, identifying below-grade-excavation-and-confined-space, under-slab-and-ground-installation, and material-handling-cut-and-adhesive hazards, and assigning real, signable controls for below-grade vapor retarders.

A Building Air Barrier System AHA — breaking the task into steps, identifying at-height-facade-fall, wind-and-material-handling, and multi-material-chemical-and-detailing hazards, and assigning real, signable controls for building air barrier systems.

A Fluid-Applied Membrane Air Barriers AHA — breaking the task into steps, identifying coating-chemical-solvent-vapor-and-spray, at-height-facade-fall, and skin-contact-and-overspray hazards, and assigning real, signable controls for fluid-applied membrane air barriers.

A Spray Foam Air Barrier AHA — breaking the task into steps, identifying isocyanate-and-chemical-spray-exposure, at-height-and-confined-space, and fire-and-skin-contact hazards, and assigning real, signable controls for spray foam air barriers.

An Asphalt Shingles AHA — breaking the task into steps, identifying steep-slope-roof-fall, nail-gun-and-tool, and material-handling-and-heat hazards, and assigning real, signable controls for asphalt shingles.

A Slate Shingles AHA — breaking the task into steps, identifying steep-slope-roof-fall, heavy-slate-handling-and-load, and slate-cutting-dust-and-tool hazards, and assigning real, signable controls for slate shingles.

A Roof Tiles AHA — breaking the task into steps, identifying steep-slope-roof-fall, heavy-tile-handling-and-load, and tile-cutting-dust-and-breakage hazards, and assigning real, signable controls for roof tiles.

A Clay Roof Tiles AHA — breaking the task into steps, identifying steep-slope-roof-fall, heavy-brittle-tile-handling-and-load, and clay-tile-cutting-silica-dust-and-breakage hazards, and assigning real, signable controls for clay roof tiles.

A Roofing and Siding Panels AHA — breaking the task into steps, identifying at-height-roof-and-wall-fall, large-panel-handling-and-wind, and sharp-edge-cut-and-fastening hazards, and assigning real, signable controls for roofing and siding panels.

A Roof Panels AHA — breaking the task into steps, identifying at-height-roof-fall-and-leading-edge, large-panel-handling-and-wind, and sharp-edge-cut-and-fastening hazards, and assigning real, signable controls for roof panels.

A Metal Roof Panels AHA — breaking the task into steps, identifying at-height-roof-fall-and-leading-edge, large-panel-handling-and-wind, and sharp-metal-edge-cut-and-fastening hazards, and assigning real, signable controls for metal roof panels.

A Fabricated Roof Panel Assemblies AHA — breaking the task into steps, identifying crane-rigging-and-hoisting, at-height-roof-fall-and-leading-edge, and large-assembly-handling-and-wind hazards, and assigning real, signable controls for fabricated roof panel assemblies.

A Wall Panels AHA — breaking the task into steps, identifying at-height-wall-fall, large-panel-handling-and-wind, and sharp-edge-cut-and-fastening hazards, and assigning real, signable controls for wall panels.

A Metal Soffit Panels AHA — breaking the task into steps, identifying at-height-overhead-fall, overhead-installation-strain-and-debris, and sharp-metal-edge-cut-and-fastening hazards, and assigning real, signable controls for metal soffit panels.

An Insulated Metal Wall Panels AHA — breaking the task into steps, identifying at-height-wall-fall, heavy-large-panel-handling-and-wind, and sharp-edge-cut-and-foam-core hazards, and assigning real, signable controls for insulated metal wall panels.

A Fiber Cement Wall Panels AHA — breaking the task into steps, identifying fiber-cement-cutting-silica-dust, at-height-wall-fall, and heavy-panel-handling-and-fastening hazards, and assigning real, signable controls for fiber cement wall panels.

A Fabricated Wall Panel Assemblies AHA — breaking the task into steps, identifying crane-rigging-and-hoisting, at-height-installation-and-fall, and large-assembly-handling-and-wind hazards, and assigning real, signable controls for fabricated wall panel assemblies.

A Soffit Panels AHA — breaking the task into steps, identifying at-height-overhead-fall, overhead-installation-strain-and-debris, and cutting-and-fastening hazards, and assigning real, signable controls for soffit panels.

A Siding AHA — breaking the task into steps, identifying at-height-wall-and-ladder-fall, cutting-and-fastening, and material-handling-and-weather hazards, and assigning real, signable controls for siding.

A Fiber Cement Siding AHA — breaking the task into steps, identifying fiber-cement-cutting-silica-dust, at-height-wall-and-ladder-fall, and heavy-plank-handling-and-fastening hazards, and assigning real, signable controls for fiber cement siding.

A Membrane Roofing AHA — breaking the task into steps, identifying low-slope-roof-fall-and-opening, hot-work-or-adhesive-chemical, and material-handling-and-heat hazards, and assigning real, signable controls for membrane roofing.

A Built-Up Bituminous Roofing AHA — breaking the task into steps, identifying hot-bitumen-burn-and-fumes, kettle-and-hot-material-handling, and low-slope-roof-fall-and-fire hazards, and assigning real, signable controls for built-up bituminous roofing.

A Built-Up Asphalt Roofing AHA — breaking the task into steps, identifying hot-asphalt-burn-and-fumes, kettle-and-hot-material-handling, and low-slope-roof-fall-and-fire hazards, and assigning real, signable controls for built-up asphalt roofing.

A Modified Bituminous Roofing AHA — breaking the task into steps, identifying torch-flame-fire-and-burn, low-slope-roof-fall, and hot-asphalt-or-adhesive-and-handling hazards, and assigning real, signable controls for modified bituminous roofing.

An Elastomeric Membrane Roofing AHA — breaking the task into steps, identifying low-slope-roof-fall-and-opening, adhesive-and-seam-chemical, and membrane-handling-and-wind hazards, and assigning real, signable controls for elastomeric membrane roofing.

An Ethylene-Propylene-Diene-Monomer Roofing AHA — breaking the task into steps, identifying low-slope-roof-fall-and-opening, seam-adhesive-and-solvent-chemical, and membrane-handling-and-wind hazards, and assigning real, signable controls for EPDM roofing.

A Polyisobutylene Roofing AHA — breaking the task into steps, identifying low-slope-roof-fall-and-opening, seam-welding-or-adhesive-and-chemical, and membrane-handling-and-wind hazards, and assigning real, signable controls for polyisobutylene roofing.

A Thermoplastic Membrane Roofing AHA — breaking the task into steps, identifying low-slope-roof-fall-and-opening, hot-air-weld-burn-and-electrical, and membrane-handling-and-wind hazards, and assigning real, signable controls for thermoplastic membrane roofing.

A Polyvinyl-Chloride Roofing AHA — breaking the task into steps, identifying low-slope-roof-fall-and-opening, hot-air-weld-burn-and-electrical, and membrane-handling-and-wind hazards, and assigning real, signable controls for PVC roofing.

A Thermoplastic-Polyolefin Roofing AHA — breaking the task into steps, identifying low-slope-roof-fall-and-opening, hot-air-weld-burn-and-electrical, and membrane-handling-glare-and-wind hazards, and assigning real, signable controls for TPO roofing.

A Coated Foamed Roofing AHA — breaking the task into steps, identifying isocyanate-and-coating-spray-exposure, low-slope-roof-fall, and foam-fire-and-overspray hazards, and assigning real, signable controls for coated foamed roofing.

A Sprayed Polyurethane Foam Roofing AHA — breaking the task into steps, identifying isocyanate-spray-exposure, low-slope-roof-fall, and foam-fire-and-overspray-drift hazards, and assigning real, signable controls for sprayed polyurethane foam roofing.

A Flashing and Sheet Metal AHA — breaking the task into steps, identifying at-height-roof-edge-and-fall, sharp-metal-edge-cut-and-laceration, and fabrication-tool-and-fastening hazards, and assigning real, signable controls for flashing and sheet metal.

A Sheet Metal Roofing AHA — breaking the task into steps, identifying steep-slope-or-roof-fall-and-slippery-metal, sharp-metal-edge-cut-and-panel-handling, and fastening-seaming-and-wind hazards, and assigning real, signable controls for sheet metal roofing.

A Standing Seam Sheet Metal Roofing AHA — breaking the task into steps, identifying roof-fall-and-slippery-metal, sharp-metal-edge-cut-and-panel-handling, and seaming-tool-and-wind hazards, and assigning real, signable controls for standing seam sheet metal roofing.

A Sheet Metal and Flashing Trim AHA — breaking the task into steps, identifying at-height-roof-edge-and-fall, sharp-metal-edge-cut-and-laceration, and fabrication-fastening-and-soldering hazards, and assigning real, signable controls for sheet metal and flashing trim.

A Roof and Wall Specialties Accessories AHA — breaking the task into steps, identifying at-height-roof-edge-and-fall, sharp-metal-edge-and-handling, and fastening-and-sealing hazards, and assigning real, signable controls for roof and wall specialties accessories.

A Roof Specialties AHA — breaking the task into steps, identifying at-height-roof-edge-and-fall, sharp-metal-edge-and-handling, and fastening-and-sealing hazards, and assigning real, signable controls for roof specialties.

A Gutter Debris Guards AHA — breaking the task into steps, identifying ladder-and-eave-edge-fall, sharp-metal-edge-and-handling, and fastening-and-debris hazards, and assigning real, signable controls for gutter debris guards.

A Reglets AHA — breaking the task into steps, identifying masonry-cutting-silica-dust, at-height-wall-and-roof-edge-fall, and sharp-metal-edge-and-fastening hazards, and assigning real, signable controls for reglets.

A Manufactured Roof Expansion Joints AHA — breaking the task into steps, identifying at-height-roof-and-opening-fall, sharp-metal-edge-and-handling, and fastening-and-sealing hazards, and assigning real, signable controls for manufactured roof expansion joints.

A Manufactured Scuppers AHA — breaking the task into steps, identifying at-height-roof-edge-and-opening-fall, sharp-metal-edge-and-handling, and fastening-sealing-and-soldering hazards, and assigning real, signable controls for manufactured scuppers.

A Roof Accessories AHA — breaking the task into steps, identifying at-height-roof-and-opening-fall, sharp-metal-edge-and-handling, and fastening-sealing-and-flashing hazards, and assigning real, signable controls for roof accessories.

A Manufactured Curbs AHA — breaking the task into steps, identifying at-height-roof-and-opening-fall, curb-handling-and-sharp-edge, and fastening-sealing-and-flashing hazards, and assigning real, signable controls for manufactured curbs.

A Ridge Vents AHA — breaking the task into steps, identifying steep-slope-roof-ridge-fall, ridge-cutting-and-tool, and sharp-edge-handling-and-fastening hazards, and assigning real, signable controls for ridge vents.

A Roof Hatches AHA — breaking the task into steps, identifying roof-opening-fall-through-and-at-height, hatch-handling-and-sharp-edge, and fastening-sealing-and-flashing hazards, and assigning real, signable controls for roof hatches.

A Fire and Smoke Protection AHA — breaking the task into steps, identifying at-height-and-overhead-work, fireproofing-and-firestop-material-exposure, and confined-and-penetration-work hazards, and assigning real, signable controls for fire and smoke protection.

An Applied Fireproofing AHA — breaking the task into steps, identifying spray-applied-overhead-material-and-dust-exposure, at-height-and-overspray, and pump-equipment-and-fall hazards, and assigning real, signable controls for applied fireproofing.

A Cement Aggregate Fireproofing AHA — breaking the task into steps, identifying spray-applied-overhead-cement-material-and-dust-exposure, at-height-and-overspray, and pump-equipment-and-fall hazards, and assigning real, signable controls for cement aggregate fireproofing.

A Cementitious Fireproofing AHA — breaking the task into steps, identifying spray-applied-overhead-cement-material-and-dust-exposure, at-height-and-overspray, and pump-equipment-and-fall hazards, and assigning real, signable controls for cementitious fireproofing.

A Foamed Magnesium-Oxychloride Fireproofing AHA — breaking the task into steps, identifying spray-applied-overhead-material-and-dust-exposure, at-height-and-overspray, and pump-equipment-and-fall hazards, and assigning real, signable controls for foamed magnesium-oxychloride fireproofing.

An Intumescent Fireproofing AHA — breaking the task into steps, identifying coating-chemical-solvent-and-spray-exposure, at-height-and-overhead, and surface-prep-and-fall hazards, and assigning real, signable controls for intumescent fireproofing.

A Magnesium Cement Fireproofing AHA — breaking the task into steps, identifying spray-applied-overhead-cement-material-and-dust-exposure, at-height-and-overspray, and pump-equipment-and-fall hazards, and assigning real, signable controls for magnesium cement fireproofing.

A Mineral-Fiber Cementitious Fireproofing AHA — breaking the task into steps, identifying spray-applied-overhead-fiber-and-cement-dust-exposure, at-height-and-overspray, and pump-equipment-and-fall hazards, and assigning real, signable controls for mineral-fiber cementitious fireproofing.

A Mineral-Fiber Fireproofing AHA — breaking the task into steps, identifying spray-applied-overhead-mineral-fiber-exposure, at-height-and-overspray, and pump-equipment-and-fall hazards, and assigning real, signable controls for mineral-fiber fireproofing.

A Board Fireproofing AHA — breaking the task into steps, identifying at-height-and-overhead-board-installation-fall, board-cutting-dust-and-handling, and fastening-and-fiber-exposure hazards, and assigning real, signable controls for board fireproofing.

A Calcium-Silicate Board Fireproofing AHA — breaking the task into steps, identifying board-cutting-silica-and-dust, at-height-and-overhead-installation-fall, and handling-and-fastening hazards, and assigning real, signable controls for calcium-silicate board fireproofing.

A Slag-Fiber Board Fireproofing AHA — breaking the task into steps, identifying board-fiber-dust-and-cutting-exposure, at-height-and-overhead-installation-fall, and handling-and-fastening hazards, and assigning real, signable controls for slag-fiber board fireproofing.

A Firestopping AHA — breaking the task into steps, identifying firestop-material-chemical-and-dust-exposure, at-height-overhead-and-confined-access, and penetration-and-opening-fall hazards, and assigning real, signable controls for firestopping.

A Penetration Firestopping AHA — breaking the task into steps, identifying floor-and-wall-penetration-opening-fall-through, firestop-material-chemical-and-dust-exposure, and overhead-and-confined-access hazards, and assigning real, signable controls for penetration firestopping.

A Joint Firestopping AHA — breaking the task into steps, identifying firestop-material-chemical-and-dust-exposure, at-height-overhead-and-confined-joint-access, and joint-opening-fall hazards, and assigning real, signable controls for joint firestopping.

A Joint Protection AHA — breaking the task into steps, identifying sealant-and-joint-material-chemical-exposure, at-height-and-confined-joint-access, and joint-prep-and-tool hazards, and assigning real, signable controls for joint protection.

A Pre-Formed Joint Seals AHA — breaking the task into steps, identifying seal-adhesive-and-sealant-chemical-exposure, at-height-and-facade-joint-fall, and joint-prep-and-handling hazards, and assigning real, signable controls for pre-formed joint seals.

A Compression Seals AHA — breaking the task into steps, identifying seal-lubricant-adhesive-chemical-exposure, at-height-and-joint-access-fall, and installation-force-and-tool hazards, and assigning real, signable controls for compression seals.

A Joint Gaskets AHA — breaking the task into steps, identifying gasket-lubricant-adhesive-chemical-exposure, at-height-and-joint-access-fall, and gasket-handling-and-installation hazards, and assigning real, signable controls for joint gaskets.

A Backer Rods AHA — breaking the task into steps, identifying at-height-and-confined-joint-access-fall, sealant-chemical-exposure, and joint-prep-and-handling hazards, and assigning real, signable controls for backer rods.

A Joint Fillers AHA — breaking the task into steps, identifying filler-material-and-cutting-dust-exposure, at-height-and-confined-joint-access-fall, and joint-prep-and-handling hazards, and assigning real, signable controls for joint fillers.

A Joint Sealants AHA — breaking the task into steps, identifying sealant-and-primer-chemical-exposure, at-height-and-confined-joint-access-fall, and joint-prep-and-tool hazards, and assigning real, signable controls for joint sealants.

An Elastomeric Joint Sealants AHA — breaking the task into steps, identifying elastomeric-sealant-and-primer-chemical-exposure, at-height-and-confined-joint-access-fall, and joint-prep-and-tool hazards, and assigning real, signable controls for elastomeric joint sealants.

An Urethane and Epoxy Crack Injection AHA — breaking the task into steps, identifying high-pressure-injection, urethane-and-epoxy-chemical-exposure, and confined-and-structural-location hazards, and assigning real, signable controls for urethane and epoxy crack injection.

An Expansion Control AHA — breaking the task into steps, identifying expansion-joint-assembly-handling-and-installation, at-height-and-opening-fall, and sealant-and-tool hazards, and assigning real, signable controls for expansion control.

An Expansion Joint Cover Assemblies AHA — breaking the task into steps, identifying cover-assembly-handling-and-installation-crush, at-height-and-opening-fall, and fastening-and-tool hazards, and assigning real, signable controls for expansion joint cover assemblies.

An Openings AHA — breaking the task into steps, identifying door-window-and-assembly-handling-and-installation, at-height-and-wall-opening-fall, and hardware-glazing-and-tool hazards, and assigning real, signable controls for openings work.

A Doors and Frames AHA — breaking the task into steps, identifying door-and-frame-handling-and-installation-crush, at-height-and-wall-opening-fall, and hardware-and-tool hazards, and assigning real, signable controls for doors and frames.

A Metal Doors and Frames AHA — breaking the task into steps, identifying metal-door-and-frame-handling-and-installation-crush, at-height-and-wall-opening-fall, and hardware-and-tool hazards, and assigning real, signable controls for metal doors and frames.

A Hollow Metal Doors and Frames AHA — breaking the task into steps, identifying hollow-metal-handling-and-installation-crush, frame-grouting-and-anchoring, and at-height-wall-opening-fall hazards, and assigning real, signable controls for hollow metal doors and frames.

An Aluminum Doors and Frames AHA — breaking the task into steps, identifying aluminum-door-and-frame-handling-and-installation, glazing-and-glass-handling, and at-height-wall-opening-fall hazards, and assigning real, signable controls for aluminum doors and frames.

A Metal Frames AHA — breaking the task into steps, identifying metal-frame-handling-and-installation, frame-anchoring-and-tool, and at-height-wall-opening-fall hazards, and assigning real, signable controls for metal frames.

A Hollow Metal Frames AHA — breaking the task into steps, identifying hollow-metal-frame-handling-and-installation, frame-grouting-and-anchoring, and at-height-wall-opening-fall hazards, and assigning real, signable controls for hollow metal frames.

A Metal Doors AHA — breaking the task into steps, identifying metal-door-leaf-handling-and-hanging-crush, at-height-and-wall-opening-fall, and hardware-and-tool hazards, and assigning real, signable controls for metal doors.

A Hollow Metal Doors AHA focused on what actually hurts installers hanging formed-steel door leaves: the deceptive weight of a core-filled fire door, the razor edges of formed sheet steel, and the pinch of aligning a leaf onto hinges. Real controls and field failures.

A Wood Doors AHA built around the hazards unique to wood leaves: field-machining dust from cutting and mortising, the care a finished veneer face demands, and the solid-core weight installers underestimate. Real controls and field failures.

A Flush Wood Doors AHA centered on what's specific to a flush veneer leaf: the strict trim limits that push machining to the factory, the fragility of a continuous veneer face, and the core-driven weight. Real controls and field failures.

A Plastic-Laminate-Faced Wood Door AHA focused on the two hazards the laminate face adds to a wood leaf: brittle laminate that chips into sharp shards when cut or knocked, and the contact-cement chemistry of any field re-lamination. Real controls and field failures.

An Integrated Door Assemblies AHA built around the one thing pre-assembled units change: you set a whole heavy, awkward frame-door-hardware-glazing unit in one lift instead of building it in place. Rigging, crush, and set-in-opening controls with field failures.

A Specialty Doors and Frames AHA for the category where the hazard changes with the product: the discipline of identifying which specialty type is in front of you — stored energy, extreme weight, chemistry — before treating it like an ordinary door. Real controls and field failures.

An Access Doors and Panels AHA about why a small, light product carries outsized risk: it's installed overhead off ladders, it opens into concealed chases and plenums, and it's cut into finished surfaces. Real controls and field failures.

A Coiling Doors and Grilles AHA covering the family: the counterbalance spring energy shared by all coiling products, the shear and pinch points of open-lattice grilles, and the heavy barrel lift. Real controls and field failures.

An Overhead Coiling Doors AHA covering the three hazards that put installers in the hospital: stored spring energy in the barrel, the curtain and counterbalance dropping during hang, and working off ladders in the door opening. Real controls, standards, and field failures.

A Vertical Lift Fabric Doors AHA about the mismatch that hurts crews: a light fabric curtain hung on a heavy powered lift mechanism at the top of a very tall opening. Working at height, powered operator, and drum/counterweight controls with field failures.

A Security Doors and Frames AHA where the reinforcement that resists attack is the install hazard: heavy reinforced leaves, and anchorage engineered to a level that makes drilling and fastening the frame the real work. Weight, anchorage, and tamper-hardware controls with field failures.

A Security Gates AHA about the hazards a gate adds over a door: a long heavy leaf that travels a wide path, a powered operator with vehicle-scale crushing force, and cantilever gates that tip if unbalanced. Travel-path, operator, and stability controls with field failures.

A Vault Doors and Day Gates AHA for the heaviest door in the building: rigging a multi-thousand-pound vault door as the entire job, the crush of the swinging mass, and the entrapment risk of boltwork and time locks. Rigging, crush, and lockout controls with field failures.

A Detention Doors and Frames AHA covering what makes correctional door work unique: heavy welded-in security anchorage, complex sliding and interlocked locking devices, and the demands of working in a secure, sometimes occupied facility with strict tool control. Real controls and field failures.

A Sound Control Door Assemblies AHA about the hazards behind acoustic performance: dense heavy leaves whose mass is the whole point, precise perimeter and automatic drop seals adjusted around that mass, and acoustic sealant chemistry. Real controls and field failures.

A Folding Doors and Grilles AHA about the two hazards multi-panel folding systems add: an overhead track carrying the full hung weight, and a hinge pinch point at every panel joint across the fold. Track, pinch, and panel-handling controls with field failures.

A Folding Doors AHA for solid-panel folding partitions: heavy individual panels hung one by one from a ceiling-recessed track, overhead work above the finished ceiling line, and the pinch points where panels meet. Panel-handling, overhead-track, and pinch controls with field failures.

An Accordion Folding Doors AHA for the lightweight vinyl-panel partitions: the scissor/pantograph mechanism that pinches like shears, the flexible overhead track work off ladders, and why a light product still hurts hands. Pinch, overhead, and handling controls with field failures.

A Panel Doors AHA for traditional stile-and-rail doors: the racking hazard of a jointed assembly handled wrong, the solid-wood weight, and the field machining that fits them. Handling, racking, and cutting controls with field failures.

A Sectional Doors AHA focused on the torsion-spring energy that maims garage- and dock-door installers, the section-panel pinch as the door articulates, and the cable/drum system under load. Real controls, standards, and field failures.

A Rigid Plastic Laminate Faced Traffic Doors AHA about the double-acting spring-return hazard: doors built to swing both ways and snap back, installed in active traffic openings, with a brittle laminate face. Spring-return, traffic, and laminate controls with field failures.

A Blast Requirements for Blast-Resistant Doors AHA where the blast rating drives everything: extreme leaf mass, engineered anchorage that must transfer blast loads to the structure, and installation tolerances that are safety-critical. Weight, anchorage, and verification controls with field failures.

An Entrances Storefronts and Curtain Walls AHA heading the glazed-facade family: the three hazards that run through all of it — glass handling and breakage, work at height on the building face, and heavy framing and glass unit lifts. Facade-glazing controls with field failures.

An Entrances and Storefronts AHA for the ground-level glazed system: heavy glass entrance doors and large storefront lites handled at grade, glazing cut and breakage, and installation in publicly-accessible openings. Glass, door, and public-interface controls with field failures.

An Aluminum-Framed Entrances and Storefronts AHA focused on the framing system itself: long extruded aluminum members field-cut and drilled (sharp swarf, cut edges), squared and anchored before glazing, and the framing handling that precedes the glass. Framing, fabrication, and anchorage controls with field failures.

An Entrances AHA centered on the entry doorway itself: heavy tempered-glass and aluminum entrance doors, the pivot/closer hardware that controls a self-closing leaf, and threshold work in a public doorway. Glass-door, closer, and doorway controls with field failures.

An Automatic Entrances AHA about the powered operator and its sensors: a door that moves on its own and can be triggered unexpectedly by a motion sensor during install, plus heavy glass leaves and a public opening. Operator-lockout, sensor, and commissioning controls with field failures.

A Storefronts AHA for the grade-level glazed wall system: setting large fixed lites into the framed wall, the wind-load infill wall that must be anchored to resist pressure, and glazing cut and breakage. Large-lite, anchorage, and glazing controls with field failures.

An Aluminum-Framed Storefronts AHA closing the storefront group: the integrated build of a field-fabricated aluminum grid filled with large glass, where sharp aluminum swarf and edges meet heavy sharp lites in one grade-level wall. Fabrication, glazing, and anchorage controls with field failures.

A Curtain Wall and Glazed Assemblies AHA for the hung high-rise facade: full-height exterior work at the building edge, unitized panels flown up the face on cranes and hoists, and the anchor connections that hang the wall off the structure. Height, rigging, and anchorage controls with field failures.

A Glazed Aluminum Curtain Wall AHA for the stick-system detail: erecting the aluminum mullion grid up the facade and field-glazing heavy lites into it at height, where every glass set is a heavy sharp pane handled at the building edge. Framing, glazing-at-height, and pressure-plate controls with field failures.

A Translucent Panels AHA about the light-but-large hazard: fiberglass and polycarbonate daylighting panels that are lightweight yet big enough to become dangerous wind sails at height, plus FRP handling and the fall exposure of wall and roof glazing. Wind, handling, and height controls with field failures.

A Windows AHA heading window installation: the wall opening that's a fall hazard until the window is in, heavy sash and glass handled at that opening, and the reach-out-the-opening exposure. Opening-fall, sash, and glass controls with field failures.

A Metal Windows AHA for the metal-framed sash specifics: the weight a steel or aluminum frame adds, the sharp metal edges of the sash, and the same wall-opening fall hazard as any window. Weight, edge, and opening controls with field failures.

A Roof Windows and Skylights AHA built around the killer hazard: the roof opening itself, where installers and skylights fall through to the level below. Fall-through, roof-height, and glass-handling controls with field failures.

A Roof Windows AHA for operable windows set into a sloped roof: the combination of working on a pitched surface, the opening fall-through, and an operable sash that catches wind and pinches. Slope, fall-through, and sash controls with field failures.

A Unit Skylights AHA centered on the classic fall-through fatality: prefabricated skylight units and their domes look solid but won't hold a person's weight. The deceptive surface, the roof opening, and glass/dome handling with real controls and field failures.

A Metal-Framed Skylights AHA for large custom skylight structures: rigging heavy metal framing and big glass units to height, glazing a large overhead assembly, and the large opening's fall-through. Rigging, at-height glazing, and opening controls with field failures.

A Hardware AHA for door hardware installation: the spring tension in closers and exit devices that snaps back, electrified access-control hardware, and the repetitive precise drilling into hung doors and frames. Spring, electrical, and boring controls with field failures.

A Door Hardware AHA for the mechanical door-hardware trade: the spring energy in closers and exit devices that snaps back under load, and the repetitive precise boring into hung doors and frames. Spring, boring, and self-closing controls with field failures.

An Automatic Door Operators AHA about adding power to a door: the operator that drives a leaf under motorized force, the sensor or switch that actuates it unexpectedly, and mounting the operator overhead on the header. Operator-lockout, actuation, and mounting controls with field failures.

A Security Door Hardware AHA about high-security mechanical hardware: heavier components, boring into hardened doors and frames, and working on a heavy reinforced leaf. Hardened-boring, heavy-hardware, and security-leaf controls with field failures.

A Detention Door Hardware AHA for correctional locking: remotely-operated interlocked locks where lockout must reach the control room, welded-in components, and tool control in an occupied secure facility. Remote-actuation, hot-work, and facility controls with field failures.

An Access Control Hardware AHA heading the electrified-locking group: the electrical work of electric strikes, maglocks, and electrified locksets, the door that unlocks on a credential, and the fail-safe life-safety wiring. Electrical, actuation, and egress controls with field failures.

A Card Key Access Control Hardware AHA about the infrastructure behind the reader: extensive structured cabling runs, controller panels, and multi-door network wiring in ceilings and conduit. Cable-pulling, overhead, and panel controls with field failures.

A Keypad Access Control Hardware AHA about the simplest access control that still bites: often standalone and single-door, mounted in exposed exterior locations, retrofitted into existing doors — where simplicity breeds complacency. Retrofit, exterior-mount, and standalone controls with field failures.

A Biometric Identity Access Control Hardware AHA about the sensitive sensor: precise rigid mounting and calibration, environmental sensitivity that affects reliability, and the privacy dimension of biometric enrollment. Mounting, calibration, and data controls with field failures.

A Glazing AHA heading the glazing trade: the three hazards across all glazing work — handling heavy sharp glazing materials, working at height on facades and openings, and glazing compounds and sealants. Glazing-trade controls with field failures.

A Glass Glazing AHA drilling into the glass craft: cutting and scoring glass with sharp offcuts, the shatter and breakage mechanics of annealed versus tempered glass, and glass-specific handling. Cutting, breakage, and handling controls with field failures.

A Mirrors AHA for wall-mounted mirror glass: handling large heavy sheets of sharp glass, the adhesive mastic that bonds them to walls, and the clips and setting. Handling, adhesive, and mounting controls with field failures.

A Glazing Surface Films AHA for film applied to existing glass: working at height and reach at windows and facades, wet-application slip and solution, and blade-trimming film against the glass. Access, wet-work, and blade controls with field failures.

A Solar Control Films AHA for heat-reducing film on sun-exposed glass: working on hot glass in direct sun with the heat stress that brings, the thermal-stress breakage risk, and the film trade's height, wet, and blade hazards. Heat, breakage, and application controls with field failures.

A Special Function Glazing AHA heading the group where the function is mass: thick, heavy, multi-layer glazing units far heavier than ordinary glass, demanding rigging and identification of the function before handling. Weight, rigging, and identification controls with field failures.

An Integrated Blinds Glazing AHA for sealed glass units with blinds inside the cavity: protecting the hermetic seal and internal mechanism during handling, the heavier insulated unit, and careful setting. Seal-protection, handling, and mechanism controls with field failures.

A Pressure-Resistant Glazing AHA where the frame capture and anchorage are the function: blast and pressure glazing that only works if the glass is captured deeply enough and the frame transfers the load to the structure. Capture, anchorage, and heavy-unit controls with field failures.

A Radiation-Resistant Glazing AHA for lead-glass shielding windows: the extreme density of leaded glass, the shielding-continuity requirement where gaps leak radiation, and the softer scratch-prone lead glass. Weight, continuity, and handling controls with field failures.

A Security Glazing AHA where the attack-resistant capture is the function: forced-entry glazing that must stay in its frame under sustained prying and battering, so the deep capture and heavy anchorage are what matter. Capture, anchorage, and heavy-unit controls with field failures.

A Ballistics-Resistant Glazing AHA for bullet-resistant glazing: the thickest, heaviest special-function units, the strike-face orientation that must be installed correctly, and the deep capture that contains a round. Weight, orientation, and capture controls with field failures.

A Louvers and Vents AHA for large exterior louver assemblies: big wind-catching panels handled at height on the facade, sharp sheet-metal blade edges, and the wall or roof opening they penetrate. Wind, height, edge, and opening controls with field failures.

A Louvers AHA for wall louver assemblies: the large sheet-metal panel handled at the wall opening, sharp blade edges, wind-catch during the set, and the wall penetration. Handling, edge, wind, and opening controls with field failures.

A Motorized Wall Louvers AHA for powered louvers: the actuator that drives the blades (a pinch and crush hazard in the closing blades), the electrical wiring, and blades that actuate on a signal. Actuator-lockout, blade-pinch, and wiring controls with field failures.

An Operable Wall Louvers AHA for manually-adjustable louvers: the operating linkage and mechanism that move the blades by hand (a pinch hazard in the linkage and blades), plus the wall-louver fundamentals. Linkage, blade-pinch, and handling controls with field failures.

A Fixed Louvers AHA for static louvers where handling is the whole hazard: large architectural and mechanical louvers as big wind-catching panels rigged and set at the facade, with sharp edges and the wall opening. Handling, wind, and opening controls with field failures.

A Door Louvers AHA for louvers fitted into doors: cutting a large louver opening into a door (weakening it, and fire-rating limits), fitting the louver, and the door-scale handling. Cutting, fire-rating, and fitting controls with field failures.

A Vents AHA for roof and wall vents: the roof-vent penetration as a fall-through opening, work at scattered roof and wall locations at height, and the smaller-scale handling. Fall-through, roof-work, and penetration controls with field failures.

A Finishes AHA heading the interior-finishes division: the three hazards across the finish trades — construction dust, at-height and overhead work on walls and ceilings, and finish chemicals. Finish-trade fundamentals with field failures.

A Plaster and Gypsum Board AHA heading the group: heavy gypsum board handling, gypsum and joint-compound dust from cutting and sanding, and overhead wall and ceiling work. Board-handling, dust, and overhead controls with field failures.

A Plaster and Gypsum Board Assemblies AHA for the wall and ceiling system: the light-gauge metal-stud framing with its sharp steel edges and screw-gun work, the board on the framing, and building the rated assembly correctly. Framing, board, and system controls with field failures.

A Plaster Assemblies AHA for the wet-plaster trade: sharp metal lath, caustic cement and lime plaster that burns skin and eyes, silica in the mix, and overhead trowel application. Lath, caustic-material, and application controls with field failures.

A Gypsum Assemblies AHA for drywall systems: multi-layer rated board assemblies, shaft walls and area separations built to the listing, heavy board handling, and gypsum dust. System-build, board-handling, and dust controls with field failures.

A Supports for Plaster and Gypsum Board AHA heading the support systems: the sharp light-gauge steel of furring, framing, and suspension, installed overhead and on walls before the board. Sharp-steel, overhead, and screw-gun controls with field failures.

A Metal Furring AHA for furring channels fastened to existing surfaces: drilling and fastening into masonry and concrete (silica, powder-actuated tools), the sharp light-gauge channels, and overhead ceiling furring. Fastening, silica, and sharp-steel controls with field failures.

A Non-Structural Metal Framing AHA for non-load-bearing metal framing: the free-standing partition framing that must be braced before the board, tall-wall stability, sharp light-gauge steel, and deflection detailing. Stability, sharp-steel, and bracing controls with field failures.

A Non-Structural Metal Stud Framing AHA for the stud-and-track erection craft: cutting and setting light-gauge studs and track, the repetitive screw-gun fastening, and the sharp cut steel of the hands-on framing work. Cutting, screw-gun, and sharp-steel controls with field failures.

A Suspension Systems AHA for ceiling suspension: the entirely-overhead work of hanging wire from the structure above and installing the grid at height, overhead fastening, and the grid that must carry the ceiling load. Overhead, hanger, and load controls with field failures.

A Cement Plastering AHA for portland cement plaster and stucco: the highly caustic cement that burns skin and eyes, silica, and the exterior scaffold work applying multi-coat stucco at height. Caustic, silica, and scaffold controls with field failures.

A Backing Boards and Underlayment AHA heading the substrate group: heavy dense board handling, cutting dust that varies by board type, and installing a substrate that must suit the finish. Handling, dust, and substrate controls with field failures.

A Cementitious Backing Boards AHA where silica is the defining hazard: cutting and grinding cement board releases respirable crystalline silica, plus the dense abrasive board and score-and-snap versus dusty power-cutting. Silica, cutting-method, and handling controls with field failures.

A Glass-Mat Faced Gypsum Backing Boards AHA where glass fiber is the defining hazard: the glass-mat facing irritates skin and the respiratory tract when cut and handled, distinct from cement board's silica. Glass-fiber, cutting, and handling controls with field failures.

A Fibered Gypsum Backing Boards AHA for fiber-reinforced gypsum board: the tough fibered core that resists score-and-snap and demands more cutting effort and dust, plus the reinforcing fiber in that dust. Cutting, dust, and handling controls with field failures.

A Gypsum Board AHA for the drywall panel itself: the heavy two-person sheet, gypsum dust from cutting and sanding, and hanging and fastening the board. Handling, dust, and fastening controls with field failures.

A Gypsum Board Fireproofing AHA for gypsum encasement of structural steel: building the fire-rated board encasement to the listing (a life-safety requirement), overhead beam and column work, heavy board handling, and gypsum dust. Encasement, overhead, and handling controls with field failures.

A Tiling AHA heading the tile trade: silica from cutting tile, caustic cement mortar and grout, and the sustained kneeling and floor-level work of tile setting. Tile-trade fundamentals with field failures.

A Ceramic Tiling AHA for glazed ceramic tile: the hard glazed tile that breaks into sharp shards when cut or snapped, silica from cutting, and the trade's cement and kneeling hazards. Sharp-shard, silica, and cement controls with field failures.

A Quarry Tiling AHA for dense unglazed floor tile: the thick heavy tile that takes more cutting (more silica) and heavier handling, and the large industrial floor areas of sustained kneeling. Silica, handling, and kneeling controls with field failures.

A Paver Tiling AHA for thick heavy paver units where handling is the dominant hazard: lifting and setting heavy pavers, silica from cutting the thick units, and sustained floor work. Handling, silica, and kneeling controls with field failures.

A Glass Mosaic Tiling AHA for small glass tiles on mesh: the sharp glass that cuts like broken glass, the fine detailed small-piece work, and the trade's cement and kneeling hazards. Sharp-glass, fine-work, and cement controls with field failures.

A Thin-Set Tiling AHA for the thin-set mortar method: silica dust from mixing the dry cement mortar powder, the caustic wet mortar, and the trowel application. Mixing-dust, caustic-mortar, and method controls with field failures.

A Thin-Set Ceramic Tiling AHA for the common combination of ceramic tile set with thin-set: the mortar's mixing-dust silica and caustic contact, plus ceramic's sharp breakage and cutting silica. Combined mortar and ceramic controls with field failures.

A Thin-Set Quarry Tiling AHA for dense quarry tile set with thin-set: the pronounced double-silica exposure (mixing dust plus cutting the dense body), the caustic mortar, and the heavy dense tile over large floors. Double-silica, mortar, and handling controls with field failures.

A Thin-Set Paver Tiling AHA for heavy pavers set with thin-set: the dominant heavy-paver handling combined with troweling and setting into caustic mortar, plus the mixing-dust silica. Handling, mortar, and silica controls with field failures.

A Thin-Set Glass Mosaic Tiling AHA where the mortar mixing is the only silica source: sharp glass tile that isn't silica-bearing, the mixing-dust silica from the thin-set, the caustic mortar, and fine mosaic work. Sharp-glass, mixing-silica, and mortar controls with field failures.

A Ceilings AHA heading the ceiling trades: the entirely-overhead work of all ceiling installation — sustained overhead strain, falls from elevated access, overhead material handling, and debris into the upturned face. Overhead-work fundamentals with field failures.

An Acoustical Ceilings AHA for acoustical panels: the mineral-fiber and fiberglass panels that irritate skin and airways when handled and cut, the overhead panel work, and the grid installation. Fiber, overhead, and panel controls with field failures.

An Acoustical Ceilings Suspension Assemblies AHA for the grid that holds acoustical panels: overhead hanger-wire work, sharp light-gauge grid members, and hanging the grid to carry the load. Overhead, sharp-grid, and load controls with field failures.

A Flooring AHA heading the flooring trades: the sustained kneeling and bent-over floor work, the flooring adhesives and their vapor and flammability, and substrate-prep dust. Flooring-work fundamentals with field failures.

A Resilient Flooring AHA for vinyl, rubber, and linoleum flooring: adhesive vapor and kneeling over large floors, the critical asbestos hazard of legacy resilient flooring, and cutting the material. Adhesive, asbestos-legacy, and kneeling controls with field failures.

A Resilient Base and Accessories AHA for the edge and transition pieces: wall base, transition strips, stair treads and nosings, and trim — their adhesive detail work, cutting and fitting, and the stair-tread work at stairs. Adhesive, fitting, and stair controls with field failures.

A Resilient Base AHA for cove and wall base: the repetitive stooped and kneeling work running base along walls throughout, the adhesive on the vertical surface, and corner fitting. Stooped-posture, adhesive, and fitting controls with field failures.

A Resilient Stair Nosing AHA for the nosing at the stair edge: working at the fall-prone leading edge of stairs, the adhesive and fitting, and the stairway fall hazard. Stair-edge, adhesive, and fitting controls with field failures.

A Vinyl Sheet Flooring AHA for sheet goods: the heavy awkward rolls to handle and maneuver, the heat or chemical seam welding of the seams, and adhesive over large floors. Roll-handling, seam-welding, and adhesive controls with field failures.

A Resilient Tile Flooring AHA for tile and plank resilient flooring: the highly repetitive piece-by-piece kneeling placement of many tiles, adhesive over large floors, and the flooring fundamentals. Repetitive-placement, adhesive, and kneeling controls with field failures.

A Vinyl Composition Tile Flooring AHA where the asbestos legacy is most acute: older VCT and vinyl-asbestos tile as the archetypal asbestos floor, the strip-and-wax finish chemicals, and the repetitive tile placement. Asbestos, finish-chemical, and placement controls with field failures.

A Linoleum Flooring AHA for the natural material: true linoleum's linseed-and-cork makeup (no vinyl asbestos legacy), its sealing and moisture sensitivity, and the flooring-trade adhesive and kneeling. Natural-material, sealing, and flooring controls with field failures.

An Epoxy Terrazzo AHA for poured-and-ground terrazzo: the reactive epoxy resin (skin sensitization, vapor) at the pour, and the heavy grinding of the cured terrazzo (respirable silica from the aggregate, slurry) at the finish. Epoxy, grinding-silica, and finishing controls with field failures.

A Resinous Flooring AHA for seamless resin floors: the reactive resin chemistry (epoxy sensitization, MMA's strong vapor and flammability) applied in multiple coats over large enclosed areas, plus substrate prep. Resin-chemistry, vapor, and flammability controls with field failures.

A Carpeting AHA for broadloom carpet: the very heavy carpet rolls, the knee-kicker and power-stretcher stretching that injures the knee, the sharp tack strips, and adhesive. Roll-handling, stretching-injury, and tack-strip controls with field failures.

A Tile Carpeting AHA for modular carpet tile: the repetitive piece-by-piece kneeling placement of many squares in adhesive, which avoids broadloom's heavy rolls, knee-kicker, and tack strips. Repetitive-placement, adhesive, and kneeling controls with field failures.

An Access Flooring AHA for raised access floors: the open panel holes into the under-floor void (fall and trip hazard), the heavy floor panels, and the pedestal-grid stability. Open-hole, panel-handling, and stability controls with field failures.

A Wall Finishes AHA heading the wall-finish trades: the at-height and reaching work on vertical wall surfaces, the finish adhesives and coating chemicals, and wall surface prep. Wall-finish fundamentals with field failures.

A Wall Coverings AHA for hanging wallpaper and vinyl coverings: the paste and adhesive wet work, hanging large sheets at height, and stripping old coverings with steam or chemicals. Adhesive, hanging, and removal controls with field failures.

A Textile Wall Coverings AHA for fabric coverings: the fabric fiber and lint from handling and cutting, the delicate careful handling and specific adhesives, and the wall-finish reaching. Fabric, adhesive, and handling controls with field failures.

An Acoustic Treatment AHA heading the acoustic trades: the mineral-fiber and fiberglass acoustic materials that irritate skin and airways, and the at-height wall and ceiling installation of treatments. Fiber, at-height, and installation controls with field failures.

An Acoustic Insulation AHA for sound-deadening insulation in cavities: the fibrous material's skin and respiratory irritation, and the cavity-filling installation packing insulation into wall and ceiling assemblies. Fiber, cavity-fill, and installation controls with field failures.

An Acoustic Board Insulation AHA for rigid and semi-rigid boards: the cutting of dense fiber boards (more fiber dust than flexible batt), the board handling and fitting, and the at-height installation. Cutting-fiber, board-handling, and installation controls with field failures.

An Acoustic Blanket Insulation AHA for flexible batts and blankets: the intimate fiber contact from handling and pressing floppy batt into cavities, the friction-fit installation, and the at-height work. Fiber-contact, friction-fit, and installation controls with field failures.

A Sprayed Acoustic Insulation AHA for spray-applied acoustic material: the airborne overspray and fiber across the whole area, the spray equipment, and the wet binder or resin chemistry. Overspray, equipment, and chemistry controls with field failures.

A Painting and Coating AHA heading the coating trades: the coating chemistry (solvents, flammability, isocyanates), the application methods including spray overspray, and surface prep with legacy lead. Coating-chemistry, spray, and prep controls with field failures.

A Painting AHA for the common painting trade: the at-height ladder and scaffold work that dominates painting falls, the paint chemistry, and legacy lead paint. Ladder-fall, paint-chemistry, and lead controls with field failures.

An Exterior Painting AHA for outdoor architectural painting: the significant-height facade work, weather exposure, and legacy exterior lead paint spread by scraping and power-washing. Height, weather, and lead controls with field failures.

An Interior Painting AHA for indoor architectural painting: the paint vapor that concentrates in enclosed rooms, interior lead-dust concentration during prep, and the ladder work. Ventilation, lead, and ladder controls with field failures.

A High-Performance Coatings AHA heading the protective-coating group: the hazardous multi-component chemistry, spray application on steel and structures, abrasive-blast surface prep, and confined-space work. Chemistry, spray, blast-prep, and confined-space controls with field failures.

An Abrasion-Resistant Coatings AHA for hard filled coatings: the abrasive aggregate filler in the wet coating and in any grinding dust, the thick-build application, and the high-performance coating chemistry. Filler, application, and chemistry controls with field failures.

A Graffiti-Resistant Coatings AHA for anti-graffiti coatings: the solvent chemistry of the coating and the aggressive graffiti-removal solvents, and application on public exterior surfaces at height. Solvent, removal-chemistry, and public-area controls with field failures.

A Marine Coatings AHA for coatings in marine service: the over-water work (fall and drowning, tidal access), the toxic biocides in antifouling coatings, and the high-performance coating chemistry. Over-water, biocide, and coating controls with field failures.

A High-Temperature-Resistant Coatings AHA for coatings on hot equipment: the burn hazard of hot surfaces and industrial equipment, the silicone high-temp chemistry, and the heat-cure off-gassing on first firing. Hot-surface, chemistry, and cure controls with field failures.

A Chemical-Resistant Coatings AHA for heavy-duty chemical-resistant coatings: the aggressive two-part reactive chemistry, the chemical-service environments they're applied in, and the confined-space containment and tank work. Chemistry, environment, and confined-space controls with field failures.

A Fire-Retardant Coatings AHA for flame-spread-retardant treatments on combustibles: the coating chemistry, application to combustible substrates like wood, and the life-safety rating quality. Chemistry, application, and rating-quality controls with field failures.

An Intumescent Painting AHA for thin-film intumescent coating on structural steel: the controlled dry-film-thickness build that determines the fire rating, the overhead structural-steel work, and the coating chemistry. Thickness-quality, at-height, and chemistry controls with field failures.

An Elastomeric Coatings AHA for thick flexible weatherproofing coatings: the heavy high-build application, the exterior wall and roof work at height, and the coating chemistry. High-build, at-height, and chemistry controls with field failures.

An Epoxy Coatings AHA where skin sensitization is the defining hazard: the two-part epoxy resin and amine hardener as the archetypal sensitizing coating, the reactive mixing, and the application. Sensitization, mixing, and application controls with field failures.

A High-Build Glazed Coatings AHA for thick glossy wall coatings: the multi-coat high-build system, the strong solvent vapor in enclosed hygienic interiors, and the interior at-height work. Multi-coat, vapor, and at-height controls with field failures.

A Textured Plastic Coatings AHA for aggregate-filled textured coatings: the aggregate-laden spray and hopper-gun application, the abrasive overspray, and the thick exterior wall work. Aggregate-spray, overspray, and application controls with field failures.

A Thermal-Break Fluid Coatings AHA for insulating fluid coatings on mechanical surfaces: the hot or cold pipes and equipment coated, the specialized coating chemistry, and the awkward mechanical-system access. Hot/cold-surface, chemistry, and access controls with field failures.

A Special Coatings AHA for specialized and non-standard coatings: identifying each specific coating's own chemistry and hazards from its data, and applying the shared coating controls. Identification, chemistry, and application controls with field failures.

A Discontinuity (Holiday) Testing AHA for coating inspection: the high-voltage holiday detector's shock hazard, the spark ignition risk in flammable atmospheres, and testing on structures at height or in confined spaces. High-voltage, ignition, and access controls with field failures.

A Steel Coatings AHA for coating structural steel: the aggressive abrasive-blast prep to bare steel, zinc-rich primers and zinc fume, and structural-steel access at height. Blast-prep, zinc, and access controls with field failures.

A Coating of Steel Waterfront Structures AHA for piers, bulkheads, and marine steel: the over-water and tidal splash-zone work, the steel blast prep over water, and drowning. Over-water, tidal, and steel-coating controls with field failures.

A Specialties AHA heading the specialties division: installing diverse manufactured specialty products into finished buildings — handling the units, fastening and anchoring, and working at height in finished spaces. Handling, fastening, and installation controls with field failures.

A Visual Display Units AHA heading the display-board group: mounting flat panel units on walls — handling awkward large panels, wall fastening and anchoring, and at-height mounting. Handling, fastening, and mounting controls with field failures.

A Chalkboards AHA for slate and porcelain-steel boards: the heavy slate board handling, the wall mounting and anchoring for heavy units, and the at-height work. Heavy-handling, anchoring, and mounting controls with field failures.

A Markerboards AHA for whiteboards including glass markerboards: the breakage and sharp-glass hazard of tempered-glass panels, the handling, and the wall mounting. Glass-breakage, handling, and mounting controls with field failures.

A Tackboards AHA for cork and fabric bulletin boards: the light routine handling, the adhesive when field-bonding cork or fabric, and the cork or fabric dust when cutting. Light-handling, adhesive, and cutting controls with field failures.

A Visual Display Conference Units AHA for larger integrated conference assemblies: the heavier multi-component unit handling, the sliding and moving parts, and the secure mounting. Handling, moving-part, and mounting controls with field failures.

A Display Cases AHA for glazed display cabinets: the glass panels and doors (handling, breakage, sharp edges), the cabinet-unit handling, and the wall or recessed mounting. Glass, cabinet-handling, and mounting controls with field failures.

A Directories AHA for building directory units: the electrical connection of illuminated directories, the glazed fronts, and the finished-lobby mounting. Electrical, glass, and mounting controls with field failures.

A Signage AHA spanning small interior signs to large exterior building signage: the significant at-height work for high-mounted exterior signs, the heavy large signs, and illuminated-sign electrical. Height, handling, and electrical controls with field failures.

A Compartments and Cubicles AHA heading the partition group: assembling panel-and-pilaster partition systems — handling panels and pilasters, floor and overhead mounting and bracing, and tight-space assembly. Handling, mounting, and assembly controls with field failures.

A Toilet Compartments AHA for toilet partitions: how the mounting style (floor-mounted, overhead-braced, ceiling-hung, floor-to-ceiling) determines the anchoring and overhead hazards, plus the restroom assembly. Mounting-style, anchoring, and assembly controls with field failures.

A Metal Toilet Compartments AHA for powder-coated steel and stainless partitions: the sharp sheet-metal edges and corners, the honeycomb-core panels, and the mounting-style anchoring. Sharp-edge, handling, and mounting controls with field failures.

A Plastic-Laminate-Clad Toilet Compartments AHA for laminate-over-particleboard partitions: the wood and particleboard dust when cutting the composite core, the heavier solid panels, and the sharp laminate edges. Dust, handling, and edge controls with field failures.

A Plastic Toilet Compartments AHA for solid-plastic HDPE partitions: the heavy dense solid-plastic panels, the plastic shavings when cutting, and the mounting-style anchoring. Heavy-handling, cutting, and mounting controls with field failures.

A Stone Toilet Compartments AHA for solid stone and marble partitions: the extreme weight and crush hazard, the critical secure anchoring, and the silica when cutting stone. Heavy-lift, anchoring, and silica controls with field failures.

A Shower and Dressing Compartments AHA for shower stalls and changing cubicles: the wet shower environment and waterproofing/drainage coordination, the corrosion-resistant materials, and the partition assembly. Wet-environment, coordination, and assembly controls with field failures.

A Wire Mesh Partitions AHA for welded and woven wire mesh cages: the sharp wire ends and mesh edges, the framed mesh panel handling, and the cage assembly. Sharp-wire, handling, and assembly controls with field failures.

A Folding Gates AHA for accordion and scissor security gates: the scissor-mechanism pinch and shear points, the spring tension, and the track mounting. Pinch-point, spring, and mounting controls with field failures.

A Demountable Partitions AHA for relocatable partition systems: the panel-and-track system assembly, the full-height panels and overhead track mounting, and the glazed panel options. System-assembly, at-height, and glass controls with field failures.

A Wall and Door Protection AHA heading the protection group: installing wall guards, crash rails, corner guards, and door protection — fastening protective products to walls and doors, cutting to length, and finished-space work. Fastening, cutting, and finished-space controls with field failures.

A Corner Guards AHA for corner-protection products: the corner mounting by adhesive or mechanical fasteners, the cutting to length, and the finished-space work. Corner-mounting, cutting, and finished-space controls with field failures.

A Bumper Guards AHA for bracket-mounted impact rails: the robust bracket mounting and backing for impact loads, the long horizontal rail handling, and the finished-space work. Mounting, handling, and finished-space controls with field failures.

A Toilet Bath and Laundry Accessories AHA heading the accessories group: mounting small accessories to walls — the wall fastening and concealed utilities, the critical secure anchoring for load-bearing grab bars, and finished-space work. Fastening, anchoring, and finished-space controls with field failures.

A Toilet Accessories AHA for restroom accessories: the load-bearing grab bars and their critical secure anchoring, the plumbing-dense wall drilling, and the finished-restroom work. Grab-bar-anchoring, drilling, and finished-space controls with field failures.

A Laundry Accessories AHA for laundry-room accessories: the laundry chute openings and fire-rated chute doors, the mechanical fold-down items, and the wall mounting. Chute-opening, mechanical, and mounting controls with field failures.

A Manufactured Fireplaces AHA for factory-built fireplace units: the clearances-to-combustibles and fire hazard, the chimney and flue assembly at height, the gas connection, and the unit handling. Clearance, chimney, gas, and handling controls with field failures.

A Safety Specialties AHA heading the safety-cabinet group: mounting safety equipment cabinets — surface-mounted and recessed installation, cutting into walls for recessed units and the fire-rating consideration, and finished-space work. Mounting, recessing, and finished-space controls with field failures.

An Emergency Access and Information Cabinets AHA for firefighter access and building-information cabinets: the exterior entry mounting into masonry, the secure tamper-resistant mounting, and the finished-facade work. Exterior-mounting, secure-mount, and facade controls with field failures.

An Emergency Key Cabinets AHA for key storage boxes: the small light box handling, the dominant secure tamper-resistant mounting, and the entry-location drilling. Secure-mount, handling, and drilling controls with field failures.

An Emergency Aid Specialties AHA for first-aid stations, eyewashes, and safety showers: the plumbing coordination for plumbed aid equipment, the accessibility and unobstructed mounting, and the finished-space work. Plumbing, accessibility, and mounting controls with field failures.

A Defibrillator Cabinets AHA for AED cabinets: the alarm and low-voltage/electrical connection, the accessible unobstructed mounting, and the recessed installation. Alarm/electrical, accessibility, and mounting controls with field failures.

A Fire Protection Specialties AHA heading the fire-equipment group: mounting fire-protection equipment — surface and recessed installation, the code-driven life-safety placement, and finished-space work. Mounting, placement, and finished-space controls with field failures.

A Fire Protection Cabinets AHA for fire cabinet enclosures: the recessed wall-cutting and fire-rating maintenance, the glazed cabinet doors, and the code-driven placement. Recessing, glass, and placement controls with field failures.

A Security Fire Extinguisher Cabinets AHA for secured extinguisher cabinets: the security features and robust mounting, the balance of security against emergency accessibility, and the recessed installation. Security, access-balance, and mounting controls with field failures.

A Fire Extinguishers AHA for portable extinguisher units: the pressurized cylinder handling, the correct type and rating for the hazard, and the code-driven bracket mounting and placement. Pressure-cylinder, correct-type, and placement controls with field failures.

A Storage Specialties AHA heading the storage group: assembling and anchoring storage units — the tip-over prevention for tall storage, the loaded-capacity anchoring, and finished-space work. Assembly, tip-over, and anchoring controls with field failures.

A Lockers AHA heading the locker group: assembling and anchoring locker banks — the bank assembly and ganging, the anti-tip wall anchoring, and the leveling and trim. Assembly, anti-tip, and leveling controls with field failures.

A Metal Lockers AHA for steel lockers: the sharp sheet-metal edges, the moderate-heavy steel handling for bank ganging, and the anti-tip anchoring. Sharp-edge, handling, and anti-tip controls with field failures.

A Wood Lockers AHA for solid-wood and wood-based lockers: the wood dust when cutting, the heavy solid-wood handling, and the anti-tip anchoring. Wood-dust, handling, and anti-tip controls with field failures.

A Plastic-Laminate-Clad Lockers AHA for laminate-over-particleboard lockers: the composite-core dust when cutting, the heavier solid panels, the sharp laminate edges, and the anti-tip anchoring. Dust, handling, and anti-tip controls with field failures.

A Wire Mesh Storage Lockers AHA for welded and woven wire mesh storage cages: the sharp wire ends and edges, the storage-cage assembly, and the loaded-cage anchoring. Sharp-wire, cage-assembly, and anchoring controls with field failures.

A Locker Room Benches AHA for locker-room benches: the floor or wall anchoring to hold the seated load, the bench-top material, and the finished-space work. Anchoring, material, and finished-space controls with field failures.

A Postal Specialties AHA heading the postal group: mounting postal products — the surface, recessed, and pedestal mounting, the secure mounting for USPS-approved locked units, and finished-space work. Mounting, secure-mount, and finished-space controls with field failures.

A Central Mail Delivery Boxes AHA for cluster box units: the pedestal and foundation anchoring for the freestanding unit, the stability against tipping, and the secure USPS-approved mounting. Foundation-anchoring, stability, and secure-mount controls with field failures.

A Storage Assemblies AHA for shelving systems: the shelving-system assembly, the loaded-shelf capacity and load distribution, and the tall-shelving anchoring against tipping. Assembly, load-capacity, and anti-tip controls with field failures.

A Metal Storage Shelving AHA for steel shelving: the sharp sheet-metal edges of shelves and uprights, the steel-shelving assembly, and the tall-shelving anti-tip anchoring. Sharp-edge, assembly, and anti-tip controls with field failures.

An Exterior Specialties AHA heading the exterior group: installing exterior-mounted products — the exterior at-height work, the wind and weather load anchoring, and the exterior wall or foundation mounting. Height, wind-load, and mounting controls with field failures.

An Awnings AHA for projecting awnings and canopies: the wind uplift on the projecting structure and its anchoring, the at-height facade mounting, and the frame and covering assembly. Wind-uplift, height, and assembly controls with field failures.

A Ground Set Flagpoles AHA for foundation-set flagpoles: the tall-pole erection and lift, the overhead powerline electrocution hazard, and the foundation and ground sleeve. Erection, powerline, and foundation controls with field failures.

An Equipment AHA heading the equipment division: installing building equipment — the heavy equipment rigging and setting, the MEP utility connections coordinated with trades, and the manufacturer installation requirements. Setting, connection, and requirement controls with field failures.

A Vehicle Pedestrian Equipment AHA for traffic and parking control equipment: the motorized moving barriers and electrical, the vehicle-impact-rated foundation anchoring, and the traffic-area work. Motorized, impact-anchoring, and traffic-area controls with field failures.

A Loading Dock Levelers AHA for dock leveler equipment: the dock-pit and dock-edge fall hazard, the heavy moving leveler mechanism and stored energy, and the setting in the pit. Fall, mechanism, and setting controls with field failures.

A Detention Equipment AHA heading the detention group: installing security-detention equipment — the heavy reinforced-steel handling, the security-integrity installation, and the secure-facility work. Handling, security-integrity, and facility controls with field failures.

A Detention Pass-Through Doors AHA for secure pass-through units: the interlocked pass-through mechanism, the opening in the secure barrier and its integrity, and the heavy steel handling. Interlock, barrier-integrity, and handling controls with field failures.

A Detention Gun Lockers AHA for secure weapon-storage lockers: the robust secure mounting so they can't be removed, the entry and sally-port location, and the heavy steel handling. Secure-mount, location, and handling controls with field failures.

A Commercial Laundry Equipment AHA for commercial washers and dryers: the heavy machine setting and anchoring against spin forces, the multiple utility connections, and the dryer gas and exhaust. Anchoring, MEP, and dryer controls with field failures.

A Fall Protection and Anchorage Systems AHA for permanent fall-protection systems: the life-safety-critical anchorage rated for fall-arrest forces, the at-height installation of the system itself, and the certification. Anchorage, at-height, and certification controls with field failures.

A Commercial Equipment AHA heading the commercial group: installing commercial equipment — the unit setting and anchoring, the utility connections, and the operating-business-space work. Setting, connection, and business-space controls with field failures.

A Residential Appliances Food Service Equipment AHA for residential-type appliances: the manageable appliance handling, the standard appliance utility connections (gas, water, electrical), and the repetitive multi-unit installation. Handling, connection, and multi-unit controls with field failures.

A Food Service Equipment AHA for commercial kitchen equipment: the heavy cooking-equipment setting, the gas and high-heat cooking connections, and the kitchen hood, exhaust, and fire-suppression coordination. Setting, gas, and hood controls with field failures.

A Walk-In Coolers AHA for walk-in refrigerators and freezers: the insulated-panel box assembly, the refrigeration system and refrigerant, and the entrapment safety-release and cold hazards. Assembly, refrigeration, and entrapment controls with field failures.

A Walk-In Freezers AHA for walk-in freezers: the life-critical low-temperature entrapment and interior safety-release, the freezer floor and frost-heave protection, and the severe cold-environment work. Entrapment, floor, and cold controls with field failures.

An Educational and Scientific Equipment AHA for lab and classroom equipment: the fume hood ventilation coordination, the laboratory service utility connections, and the chemical-resistant casework and benches. Ventilation, services, and casework controls with field failures.

An Audio-Visual Equipment AHA heading the AV group: mounting AV equipment — the overhead and wall mounting secured so it can't fall, the low-voltage and electrical connections, and the at-height work. Mounting, electrical, and height controls with field failures.

A Projection Screens AHA for projection screens: the large screen unit mounted high or from the ceiling secured against falling, the motorized screen electrical and mechanism, and the at-height work. Mounting, motorized, and height controls with field failures.

A Projectors AHA for ceiling-mounted projectors: the ceiling mount secured against falling, the precise alignment at height, and the ceiling electrical and data. Mounting, alignment, and ceiling controls with field failures.

An Entertainment Equipment AHA heading the entertainment group: installing theater and venue equipment — the overhead stage equipment secured over stage and audience, the at-height venue work, and the significant electrical. Overhead, height, and electrical controls with field failures.

A Rigging Systems and Controls AHA for theatrical stage rigging: the overhead load-bearing rigging over performers and audience, the counterweight stored energy, and the at-height install over the stage. Load-bearing, counterweight, and at-height controls with field failures.

A Playground Equipment AHA for outdoor play structures: the foundation footing anchoring, the fall-height and safety-surfacing coordination, and the safety-compliant assembly. Footing, surfacing, and assembly controls with field failures.

A Healthcare Equipment AHA heading the healthcare group: installing medical equipment — the medical gas and specialized utility connections, the heavy and precise equipment, and the healthcare-environment infection control. Utility, equipment, and environment controls with field failures.

An Examination and Treatment Equipment AHA for exam tables and treatment units: the patient-load-bearing mounting and anchoring, the powered and utility connections, and the precise installation. Anchoring, connection, and precision controls with field failures.

A Furnishings AHA heading the furnishings division: installing furnishings — the finish-installation work, the wall and surface mounting, and the finished-space protection. Install, mounting, and finished-space controls with field failures.

An Art AHA for installed artwork: the secure art mounting so pieces don't fall, the varied and sometimes-heavy pieces, and the valuable-item handling and protection. Mounting, handling, and protection controls with field failures.

A Wall Decorations AHA for decorative wall-mounted items: the lighter decorative items mounted flat to walls, the secure mounting into backing, and the wall-area layout. Mounting, support, and layout controls with field failures.

A Window Treatments AHA heading the window-treatment group: mounting window treatments at windows — the secure at-window mounting, the at-window and sometimes-high work, and the operating mechanism. Mounting, window-work, and mechanism controls with field failures.

A Window Blinds AHA for window blinds: the slatted tilt mechanism, the raise/lower lift mechanism, and the slat handling. Tilt, lift, and slat controls with field failures.

A Window Shades AHA heading the shade group: continuous-material window shades — the continuous shade material, the raise/lower shade mechanism, and the lighter fabric handling. Material, mechanism, and handling controls with field failures.

A Roller Window Shades AHA for roller shades: the roller-tube mechanism, the fabric tracking on the tube, and the larger and often motorized roller shades. Roller, tracking, and motorized controls with field failures.

A Pleated Window Shades AHA for pleated and cellular shades: the accordion pleat stacking, the lift cords through the pleats, and the even pleat stacking. Stacking, cord, and alignment controls with field failures.

A Window Treatment Operating Hardware AHA for operating hardware: the manual operating mechanism, the smooth function and adjustment, and the cord safety. Mechanism, function, and cord-safety controls with field failures.

A Window Treatment Control System AHA for motorized and automated controls: the motorization and electrical, the control-system integration and wiring, and the commissioning. Motorization, control, and commissioning controls with field failures.

A Motorized Drapery Rods AHA for motorized traverse rods: the motorized traverse mechanism, the electrical connection, and the long rod and track mounting. Traverse, electrical, and mounting controls with field failures.

A Casework AHA heading the casework group: installing casework — the cabinet setting and mounting, the secure wall-cabinet hanging, and the leveling and finished fit. Setting, hanging, and leveling controls with field failures.

A Specialty Casework AHA for specialized casework: the specialized-function features and service integration, the heavier and more-robust units, and the precise functional install. Function, service, and handling controls with field failures.

A Display Casework AHA for glazed display cabinets: the glass display components, the integrated display lighting, and the display quality and security. Glass, lighting, and display controls with field failures.

A Countertops AHA heading the countertops group: installing countertops — the heavy top handling, the fabrication cutting and its dust (silica for stone), and the setting, support, and leveling. Handling, cutting, and setting controls with field failures.

A Plastic-Laminate-Clad Countertops AHA for laminate countertops: the lighter tops with no silica, the laminate and substrate cutting dust, and the laminate finish and seaming. Handling, dust, and finish controls with field failures.

A Solid Surfacing Countertops AHA for solid-surface tops: the field fabrication dust (not silica), the seamless adhesive seaming, and the moderate weight. Fabrication, seaming, and handling controls with field failures.

A Furniture AHA heading the furniture group: installing furniture — the assembly and placement, the anti-tip stability for tall furniture, and the finished-space delivery. Assembly, anti-tip, and delivery controls with field failures.

An Office Furniture AHA for office furniture: the systems and panel furniture assembly, the powered-panel electrical, and the repetitive workstation layout. Systems, electrical, and layout controls with field failures.

A Case Goods AHA for cased furniture: the heavy freestanding cased pieces, the mostly-preassembled placement, and the finished-piece protection and anti-tip. Handling, placement, and protection controls with field failures.

A Seating AHA heading the seating group: installing seating — the loose-seating placement, the fixed and anchored seating, and the seated-load stability. Placement, anchoring, and stability controls with field failures.

A Chairs AHA for individual chairs: the light individual handling, the chair mechanism, and the high-volume repetitive placement. Handling, mechanism, and volume controls with field failures.

A Retail Furniture AHA for store fixtures: the retail fixture install, the operating-store environment, and the loaded-display stability. Fixture, environment, and stability controls with field failures.

A Custom Retail Furniture AHA for bespoke store fixtures: the custom millwork fixtures, the high finished quality and brand appearance, and the field fitting. Custom, finish, and fitting controls with field failures.

A Hospitality Furniture AHA heading the hospitality group: furnishing hospitality spaces — the high-volume repetitive furnishing, the commercial-grade durability, and the operating-hospitality environment. Volume, durability, and environment controls with field failures.

A Hotel and Motel Furniture AHA for guest room furniture: the identical guest-room package, the wall-mounted and anchored items, and the guest-ready finish. Package, wall-anchoring, and finish controls with field failures.

A Restaurant Furniture AHA for dining furniture: the dining seating including fixed booths and banquettes, the fixed-seating anchoring, and the high-use durability and dining density. Seating, anchoring, and durability controls with field failures.

A Custom Hospitality Furniture AHA for bespoke hospitality pieces: the custom millwork signature pieces, the high finished quality and design-statement appearance, and the field fitting. Custom, finish, and fitting controls with field failures.

A Detention Furniture AHA for security detention furniture: the heavy security-grade construction, the tamper- and ligature-resistant secure install, and the secure-facility work. Construction, security-install, and facility controls with field failures.

A Detention Bunks AHA for security bunks: the heavy wall- and floor-mounted bunk, the sleeper-load-bearing robust anchoring, and the ligature-resistant design. Mounting, anchoring, and ligature controls with field failures.

A Detention Desks AHA for security desks: the fixed wall-mounted writing surface, the cantilever-load robust anchoring, and the tamper- and ligature-resistant install. Mounting, anchoring, and security controls with field failures.

A Detention Stools AHA for security stools: the fixed pedestal or wall-mounted stool, the seated-load anchoring, and the tamper- and ligature-resistant install. Mounting, seated-load, and security controls with field failures.

A Detention Tables AHA for security tables: the large floor-anchored table, the combination table-and-stool units, and the table and multi-seated-load anchoring. Table, combination, and load controls with field failures.

A Custom Detention Furniture AHA for bespoke security furniture: the custom security fabrication, the preserved security and ligature compliance on custom pieces, and the field fitting to secure spaces. Custom, compliance, and fitting controls with field failures.

A Detention Control Room Furniture AHA for officer control consoles: the operator control console, the ergonomic 24/7-operator design, and the electronics and systems integration. Console, ergonomic, and integration controls with field failures.

An Institutional Furniture AHA for institutional-grade furniture: the heavy-duty durability, the anti-tip and secure install for public and vulnerable users, and the high-volume furnishing. Durability, anti-tip, and volume controls with field failures.

A Religious Furniture AHA for worship furniture: the pew and fixed-worship-seating install, the liturgical millwork feature pieces, and the worship-space environment. Seating, feature-piece, and space controls with field failures.

A Classroom Furniture AHA heading the classroom group: furnishing classrooms — the high-volume student furniture, the durability and child-safety, and the fixed versus loose furniture. Volume, durability, and fixed-furniture controls with field failures.

A Fixed Classroom Tables AHA for floor-anchored tables: the secure floor anchoring, the sometimes-attached bench seating, and any lab services. Anchoring, seating, and service controls with field failures.

A Lecterns AHA for lecterns and podiums: the freestanding or fixed placement, the integrated AV and electrical, and the stability. Placement, AV, and stability controls with field failures.

A Dormitory Furniture AHA for residence-hall furniture: the identical dorm-room package at scale, the durable student use, and the loftable beds and anti-tip. Package, durability, and bed/anti-tip controls with field failures.

A Library Furniture AHA for library furniture: the tall loaded stacks and their anchoring, the heavy book-load capacity, and the study furniture. Stacks, capacity, and study-furniture controls with field failures.

An Audio-Visual Furniture AHA for AV furniture: the equipment-housing furniture, the integrated cabling and electrical, and the finished-furniture quality. Housing, cabling, and finish controls with field failures.

A Healthcare Furniture AHA for clinical furniture: the cleanable infection-control materials, the patient-use durability and safety, and the clinical-environment install. Materials, patient-use, and environment controls with field failures.

A Systems Furniture AHA for panel-based furniture systems: the panel-system assembly, the powered and electrified panels, and the modular layout. Assembly, power, and layout controls with field failures.

A Free-Standing Component Systems AHA for freestanding modular components: the self-supporting components, the freestanding stability, and the freestanding power delivery. Component, stability, and power controls with field failures.

A Multiple Seating AHA heading the multiple-seating group: installing ganged seating — the ganged and beam-mounted units, the floor anchoring, and the row alignment. Ganging, anchoring, and alignment controls with field failures.

A Fixed Audience Seating AHA for fixed theater and auditorium seating: the floor and riser anchoring, the tiered and sloped-floor install, and the folding seat mechanism. Anchoring, tiered-install, and mechanism controls with field failures.

An Upholstered Audience Seating AHA for padded theater seats: the upholstered comfort seats, the upholstery protection, and the fire-rated upholstery. Comfort, protection, and fire-rating controls with field failures.

A Molded-Plastic Audience Seating AHA for durable plastic seats: the molded-plastic seats, the weather- and wear-resistance, and the high-volume durability. Material, durability, and volume controls with field failures.

A Portable Audience Seating Installation AHA for movable and telescopic seating: the portable/telescopic mechanism, the deployment stability, and the movable nature. Mechanism, deployment, and stability controls with field failures.

An Other Furnishings Installation AHA for miscellaneous furnishings: the varied miscellaneous items, the appropriate placement and mounting, and the finished-space delivery. Item, placement, and finish controls with field failures.

A Site Furnishings Installation AHA heading the site-furnishings group: installing exterior site amenities — the outdoor site placement, the ground and pavement anchoring, and the durable outdoor and public use. Placement, anchoring, and durability controls with field failures.

A Bicycle Racks Installation AHA for bike parking racks: the surface-mount or embedded anchoring, the bike-access layout, and the modest install. Anchoring, layout, and install controls with field failures.

A Bicycle Lockers Installation AHA for enclosed bike storage: the enclosed locker units, the heavier-unit anchoring, and the locking mechanism. Unit, anchoring, and locking controls with field failures.

A Trash and Litter Receptacles Installation AHA for outdoor waste receptacles: the receptacle placement and securing, the durable waste-appropriate construction, and the modest install. Placement, durability, and install controls with field failures.

A Special Construction Installation AHA heading the special-construction division: installing specialized assemblies — the specialized engineered systems, the manufacturer and specialty-contractor coordination, and the building integration. System, coordination, and integration controls with field failures.

A Cold Storage Rooms Installation AHA for refrigerated rooms: the insulated-panel enclosure, the refrigeration integration, and the cold-environment entrapment safety. Enclosure, refrigeration, and cold-safety controls with field failures.

A Metal Building Systems Installation AHA for pre-engineered metal buildings: the pre-engineered steel-frame erection, the metal roof and wall panel install, and the engineered-system completeness. Erection, panel, and system controls with field failures.

An Integrated RFI/EMI Shielding Assemblies Installation AHA for shielded enclosures: the continuous conductive shield, the penetration treatment, and the shielding-performance verification. Shield, penetration, and verification controls with field failures.

A Fire Suppression Standpipes Installation AHA for standpipe systems: the vertical riser install, the hose connections per floor, and the firefighter-use class and testing. Riser, connection, and class controls with field failures.

A Suppression Sprinkler Systems Installation AHA heading the sprinkler-system group: installing automatic sprinkler systems — the automatic sprinkler network, the head operation and coverage, and the system-type basis. Network, head, and type controls with field failures.

A Wet-Pipe Sprinkler Systems Installation AHA for water-filled sprinkler systems: the water-filled piping, the wet alarm valve and simple setup, and the freeze vulnerability. Piping, valve, and freeze controls with field failures.

A Dry-Pipe Sprinkler Systems Installation AHA for air-filled sprinkler systems: the air-filled piping and dry-pipe valve, the freeze-prone application, and the air system and setup. Air, freeze, and setup controls with field failures.

A Deluge Fire-Suppression Sprinkler Systems Installation AHA for open-head systems: the open-head total discharge, the deluge valve and detection trigger, and the high-hazard application. Open-head, valve, and application controls with field failures.

A Carbon-Dioxide Fire Extinguishing Systems Installation AHA for CO2 suppression: the CO2 cylinder and piping, the oxygen-displacement asphyxiation hazard, and the detection-triggered total flooding. Cylinder, asphyxiation, and detection controls with field failures.

A Clean-Agent Fire-Extinguishing Systems Installation AHA for clean-agent suppression: the clean-agent cylinder and piping, the enclosure integrity, and the detection-triggered total flooding. Cylinder, enclosure, and detection controls with field failures.

A Wet-Chemical Fire-Extinguishing Systems Installation AHA for kitchen-hood suppression: the kitchen-hood and appliance install, the wet-chemical agent, and the appliance and fuel shutoff. Hood, agent, and shutoff controls with field failures.

A Dry-Chemical Fire-Extinguishing Systems Installation AHA for dry-powder suppression: the dry-powder agent and residue, the industrial special-hazard application, and the detection and fuel shutoff. Agent, application, and actuation controls with field failures.

A Fire Pumps Installation AHA for fire pump systems: the pump, driver, and controller install, the water and power connection, and the acceptance flow test. Equipment, connection, and testing controls with field failures.

A Fire-Suppression Water Storage Installation AHA for stored fire-water supply: the water-storage tank or reservoir install, the fire-water supply connection, and the capacity and reliability. Storage, connection, and capacity controls with field failures.

A Storage Tanks for Fire-Suppression Water Installation AHA for fire-water tanks: the tank erection and assembly, the ground/elevated tank type, and the tank testing, coating, and confined space. Erection, type, and testing controls with field failures.

A Plumbing Installation AHA heading the plumbing division: installing plumbing systems — the plumbing piping systems, the water, sanitary, fixtures, and equipment, and the code, testing, and sanitation. Piping, system, and code controls with field failures.

An Operation and Maintenance of Plumbing Piping and Pumps AHA for servicing existing plumbing: the existing-system isolation and lockout, the pump maintenance, and the water contents and sanitation. Isolation, pump, and contents controls with field failures.

A Common Work Results for Plumbing Installation AHA for the shared plumbing basics: the common plumbing materials and methods, the piping supports and hangers, and the shared install methods and quality. Materials, supports, and methods controls with field failures.

A Selective Demolition for Plumbing AHA for removing existing plumbing: the selective removal and isolation, the existing contents and system hazards, and the demolition hazards. Isolation, contents, and demolition controls with field failures.

A Heat Tracing for Plumbing Piping Installation AHA for pipe heat-trace: the heat-trace cable install, the electrical connection and power, and the freeze-protection function and insulation. Cable, electrical, and function controls with field failures.

A Plumbing Piping Insulation Installation AHA for pipe insulation: the insulation application, the insulation-material hazards, and the condensation, energy, and coordination function. Application, material, and function controls with field failures.

A Commissioning of Plumbing Systems AHA for plumbing commissioning: the systematic testing and verification, the operating-system testing hazards, and the potable-water and sanitation verification. Testing, operating, and verification controls with field failures.

A Plumbing Piping Installation AHA for core plumbing piping: the water-supply and DWV install, the pipe-material-specific joining, and the slope, testing, and routing. Piping, joining, and testing controls with field failures.

A Domestic Water Heat Exchange Installation AHA for indirect water heating: the heat-exchanger install and dual connection, the heating-medium and pressure hazards, and the potable-side separation and T&P relief. Exchanger, medium, and separation controls with field failures.

A Plumbing Fixtures Installation AHA heading the fixtures family: installing plumbing fixtures — the fixture setting and mounting, the water and drain connection, and the fixture material and sanitation. Setting, connection, and material controls with field failures.

A Commercial Plumbing Fixtures Installation AHA for commercial fixtures: the commercial fixture setting and carriers, the flush-valve and commercial trim, and the high-use durability. Setting, trim, and durability controls with field failures.

A Healthcare Plumbing Fixtures Installation AHA for clinical fixtures: the healthcare fixture setting, the infection-control and backflow, and the specialized clinical connections. Setting, infection-control, and clinical controls with field failures.

An Emergency Plumbing Fixtures Installation AHA heading the emergency-fixtures cluster: the emergency-fixture install and location, the tepid-water supply, and the ANSI Z358.1 performance and testing. Location, water, and performance controls with field failures.

An Emergency Showers Installation AHA for drench showers: the drench-shower install and activation, the high-flow full-body coverage, and the drainage, space, and tepid water. Install, flow, and drainage controls with field failures.

An Eyewash Equipment Installation AHA for plumbed eyewash: the eyewash install and activation, the eye-flushing low-velocity flow and pattern, and the tepid water and access. Install, flow, and access controls with field failures.

A Self-Contained Eyewash Equipment Installation AHA for portable eyewash: the self-contained unit install, the flushing-fluid reservoir and maintenance, and the ANSI Z358.1 and access. Install, fluid, and access controls with field failures.

A Security Plumbing Fixtures Installation AHA for detention fixtures: the security-fixture setting and mounting, the tamper and ligature resistance, and the chase and rear-access plumbing. Mounting, security, and chase controls with field failures.

A Drinking Fountains and Water Coolers Installation AHA for drinking-water dispensers: the fountain and cooler setting, the potable-water sanitation, and the refrigeration and electrical. Setting, potable, and refrigeration controls with field failures.

A Pool and Fountain Plumbing Systems Installation AHA for recirculating water features: the circulation and filtration piping, the pump pit and equipment room, and the water treatment and chemical feed. Circulation, pump, and chemical controls with field failures.

A Swimming Pool Plumbing Systems Installation AHA for swimming pools: the swimming-pool circulation, the swimmer safety and anti-entrapment, and the pool sanitation and health code. Circulation, safety, and sanitation controls with field failures.

A Gas and Vacuum Systems for Laboratory and Healthcare Facilities Installation AHA heading the specialty-gas cluster: the specialty-gas and vacuum piping, the medical-gas purity and certification, and the gas and oxygen hazards. Piping, purity, and gas controls with field failures.

A Compressed-Air Systems for Laboratory and Healthcare Facilities Installation AHA for medical air: the medical-air source, the air quality and monitoring, and the piping and certification. Source, quality, and piping controls with field failures.

A Healthcare Compressed Air Piping Installation AHA for medical-air piping: the medical-air-piping install and brazing, the clean oxygen-service practices, and the piping testing and purge. Piping, cleanliness, and testing controls with field failures.

A Vacuum Systems for Laboratory and Healthcare Facilities Installation AHA for medical vacuum: the vacuum source and piping, the contaminated and infectious contents, and the piping certification. Source, contents, and piping controls with field failures.

A Healthcare Gas Piping Installation AHA for medical-gas piping: the medical-gas-piping install and brazing, the oxygen-clean and no-cross-connection requirements, and the gas hazards and testing. Piping, cross-connection, and gas controls with field failures.

A Heating, Ventilating, and Air Installation AHA heading the HVAC division: installing HVAC systems — the HVAC equipment, the ductwork and piping, and the refrigerant, combustion, and pressure. Equipment, distribution, and system controls with field failures.

An HVAC System Cleaning AHA for duct/air-system cleaning: the duct and air-system cleaning, the contaminant and dust exposure, and the existing-system lockout and access. Cleaning, dust, and lockout controls with field failures.

A Refrigerant Recovery / Recycling AHA for refrigerant handling: the recovery process and equipment, the refrigerant hazards, and the EPA 608 no-venting requirements. Recovery, hazard, and regulatory controls with field failures.

A Refrigerant Re-Charging (Non-Ammonia based) AHA for charging refrigerant: the charging process and equipment, the refrigerant hazards, and the proper-charge and EPA requirements. Charging, hazard, and charge controls with field failures.

A Selective Demolition for HVAC AHA for removing HVAC: the isolation and make-safe, the removal and cutting hazards, and the demolition debris and existing materials. Isolation, removal, and demolition controls with field failures.

A Common Motor Requirements for HVAC Equipment AHA for HVAC motors: the motor install and connection, the electrical hazards and lockout, and the rotating equipment and start-up. Motor, electrical, and rotating controls with field failures.

A Hangers and Supports for HVAC Piping and Equipment Installation AHA: the hanger and support install, the structural attachment and load, and the overhead at-height work. Support, load, and overhead controls with field failures.

A Vibration and Seismic Controls for HVAC Installation AHA: the vibration-isolation install, the seismic-restraint and bracing install, and the load-bearing attachment. Isolation, restraint, and attachment controls with field failures.

A Testing, Balancing, and Adjusting for HVAC AHA: the TAB process and measurement, the operating-system hazards, and the access and at-height work. Measurement, operating-system, and access controls with field failures.

An HVAC Insulation Installation AHA heading the HVAC-insulation family: the insulation install, the fiber and dust exposure, and the overhead at-height work. Insulation, fiber, and overhead controls with field failures.

A Duct Insulation Installation AHA for ductwork insulation: the duct-wrap and liner install, the fiber and dust exposure, and the overhead work and vapor barrier. Duct-insulation, fiber, and overhead controls with field failures.

An HVAC Piping Insulation Installation AHA for pipe insulation: the pipe-insulation install, the fiber and dust exposure, and the hot-and-cold piping and vapor barrier. Pipe-insulation, fiber, and hot/cold controls with field failures.

A Commissioning of HVAC Systems AHA: the commissioning and functional-testing process, the operating-system hazards, and the multi-system access and coordination. Testing, operating-system, and coordination controls with field failures.

A Commissioning of HVAC AHA covering the commissioning workflow, the operating-system hazards during functional testing, and the energization coordination that keeps the crew safe while equipment is started under test.

An Instrumentation and Control for HVAC Installation AHA covering the control-system install and wiring, the electrical interface with energized HVAC equipment, and the loop checks that can start equipment under command.

An Instrumentation and Control Devices for HVAC Installation AHA covering device mounting into operating systems, the pressurized and hot tap-in points, and the actuators that stroke on command.

A BACnet Direct Digital Control for HVAC and Other Building Control Systems AHA covering the DDC network install, and the programming and integration that can start equipment building-wide from a laptop.

A Facility Natural-Gas Piping Installation AHA covering the gas-piping install, the flammable-gas leak and explosion hazards, and the pressure-testing and purging that bring the line into and out of service.

A Hydronic Piping and Pumps Installation AHA covering the hot and chilled water piping, the circulating pumps with their rotating and electrical hazards, and the pressure and thermal hazards of filling and testing.

A Hydronic Piping Installation AHA covering the hot and chilled water piping install and joining, the water-filled weight and at-height work, and the pressure and thermal hazards once the system is charged.

A Steam and Condensate Piping and Pumps Installation AHA covering the steam and condensate piping, the severe steam burn and pressure hazards, and the condensate pumps and thermal commissioning.

A Refrigerant Piping Installation AHA covering the brazed copper refrigerant-piping install, the refrigerant asphyxiation and frostbite hazards, and the pressure-test, evacuation, and charging under EPA rules.

An HVAC Water Treatment Components Installation AHA covering the treatment-equipment install, the water-treatment chemical hazards, and the cooling-tower and system tie-in considerations.

A Boiler Feedwater Pumps Installation AHA covering the pump install and rotating-equipment hazards, the hot high-pressure feedwater, and the boiler-system tie-in and commissioning.

A Packaged Water Chillers Installation AHA covering the heavy chiller rigging, the large refrigerant charge and electrical service, and the pressure and commissioning hazards of the cooling plant's core machine.

A Chilled, Hot, and Condenser Water Piping Systems Installation AHA covering the large plant water piping, the water-filled weight and thermal range, and the pressure-testing and plant tie-ins.

A Cooling Towers Installation AHA covering the heavy rooftop rigging, the Legionella and fan hazards, and the fall and wet-surface conditions of the plant's heat-rejection equipment.

An Air Handling Units Installation AHA covering the heavy unit rigging and field assembly, the multiple components housed in one cabinet, and the many connections and confined-cabinet service.

A Decentralized Unitary HVAC Equipment Installation AHA covering the packaged-unit rigging, the self-contained refrigerant and electrical, and the rooftop and distributed-unit conditions.

An Air Coils Installation AHA heading the coil family: the coil install, the sharp finned surfaces and heavy handling, and the connection hazards that depend on the coil type.

A Hydronic Air Coils Installation AHA covering the coil-to-piping connection, the hot and chilled water and freeze hazards, and the shared finned-coil handling and condensate.

A Refrigerant Air Coils Installation AHA covering the refrigerant-circuit connection and brazing, the refrigerant hazards, and the shared finned-coil handling and condensate.

A Fan Coil Units Installation AHA covering the small terminal-unit install, the combined fan and coil in one compact unit, and the many-units and condensate considerations.

A Radiant Heating Hydronic Piping Installation AHA covering the embedded tubing install, the pressure-test held through the concrete pour, and the hot-water and concrete-coordination hazards.

A Humidifiers Installation AHA covering the humidifier install, the steam and hot-water hazards and biological growth in humidifier water, and the moisture and condensation management.

A Mechanical Dehumidification Units Installation AHA covering the unit install, the refrigerant or desiccant-regeneration hazards and heavy condensate, and the rotating-equipment and commissioning concerns.

An Integrated Automation AHA heading the division: the integration-system install, the control of physical equipment across many building systems, and the network and commissioning concerns.

A Cybersecurity for Direct Digital Control Systems AHA covering the security measures for DDC, the physical and safety consequences of a compromised control system, and the secure commissioning and ongoing posture.

A Cybersecurity for SCADA Control System AHA covering the supervisory, distributed scale, the critical-infrastructure consequences of a compromise, and the SCADA-specific security measures.

A Risk Management Framework for Facility-Related Control Systems AHA covering the structured risk-management process, its application to physical-consequence control systems, and the lifecycle authorization and governance.

An Integrated Automation Facility Controls Installation AHA covering the facility-controls hardware install, the commissioning that commands facility equipment, and the electrical-interface and network work.

An Integrated Automation Control of Facility Equipment Installation AHA covering the equipment-control integration, the commissioning that operates real equipment under command, and the multi-system sequence coordination.

An Integrated Automation Control of Conveying Equipment Installation AHA covering the conveying-equipment integration, the people-carrying and entrapment life-safety concerns, and the coordination with the elevator trade's dedicated safety controls.

An Integrated Automation Control of Fire-Suppression Systems Installation AHA covering the fire-suppression integration, the accidental-discharge and life-safety-integrity concerns, and coordination with the fire-protection trade and authority having jurisdiction.

An Integrated Automation Control of Plumbing Installation AHA covering the plumbing integration, the flooding and potable-water-integrity and scald concerns, and the commissioning that operates water equipment.

An Integrated Automation Control of HVAC Installation AHA covering the deep HVAC integration, the broad equipment operation and smoke-control life-safety function, and the multi-equipment sequence coordination.

An Integrated Automation Control of Electrical Systems Installation AHA covering the electrical-systems integration, the high-energy switching and unexpected-energization hazards, and coordination with the qualified electrical trade.

An Integrated Automation Control of Communications Systems Installation AHA covering the communications integration, the availability and integrity of critical communications, and the low-physical-hazard network install.

An Integrated Automation Control of Electronic Safety and Security Systems Sequences AHA covering the safety-and-security integration, the egress and life-safety versus security balance, and coordination with the life-safety trades and authority having jurisdiction.

An Integrated Automation Control of Sequences AHA heading the sequences sub-family: the sequence logic itself, the cascading and automatic operation of chained equipment, and the sequence commissioning and verification.

An Integrated Automation Control of Sequences for Facility Equipment Installation AHA covering the facility-equipment sequences, the cascading operation of physical machinery, and the staging, interlocks, and commissioning.

An Integrated Automation Control of Sequences for Conveying Equipment Installation AHA covering the conveying-equipment sequences, the people-mover cascade and fire-recall life-safety sequences, and coordination with the elevator trade.

An Integrated Automation Control of Sequences for Fire-Suppression Systems AHA covering the fire-response cause-and-effect sequences, the life-safety cascade that must perform without accidental discharge, and coordination with the fire trade and authority having jurisdiction.

An Integrated Automation Control of Sequences for Plumbing AHA covering the plumbing sequences, the water-operation cascade and the leak- and level-response sequence integrity, and the potable-water protection.

An Integrated Automation Control of Sequences for HVAC AHA covering the rich HVAC sequence set, the broad equipment cascade and smoke-control life-safety sequences, and the multi-sequence interactions.

An Integrated Automation Control of Sequences for Electrical Systems AHA covering the electrical sequences, the high-energy switching cascade and emergency-power sequence integrity, and the lockout discipline independent of the automation.

An Integrated Automation Control of Sequences for Communications Systems AHA covering the communications sequences, the emergency-notification sequence integrity and communications availability, and the low physical hazard.

An Integrated Automation Control of Sequences for Electronic Safety and Security Systems AHA covering the safety and security sequences, the egress override across the security cascade, and the emergency-response sequence integrity.

An Electrical AHA heading the division: the electrical work scope, the defining shock and arc-flash hazards and de-energized-work discipline, and the qualified-person and general construction requirements.

A Maintenance Testing of Electrical Systems AHA covering the electrical-testing work, the applied test-voltage and stored-charge hazards, and the de-energized, locked-out context and qualified test personnel.

An Infrared Testing of Electrical Systems AHA covering infrared thermography, the inherently energized work and arc-flash exposure, and the exposure-minimizing measures and qualified thermographer.

A Common Work Results for Electrical AHA covering the shared electrical building blocks, the foundational grounding-and-bonding safety and de-energized install, and the at-height raceway and cable-pulling work.

A Selective Demolition for Electrical AHA covering the electrical-demolition work, the danger that removed circuits may still be energized, and the legacy hazardous materials and demolition hazards.

A Medium Voltage Cabling Installation AHA covering the MV cabling install, the severe energy and arc-flash of medium voltage and the specialized terminations, and the heavy large-cable pulling.

A Grounding and Bonding for Electrical Systems AHA covering the grounding and bonding install, its correctness as the life-safety foundation of the system, and the exothermic-welding and ground-rod physical hazards.

A Conduit for Electrical Systems Installation AHA covering the conduit install, the fabrication and cutting/threading hazards and at-height overhead work, and the de-energized raceway install.

A Cable Trays for Electrical Systems Installation AHA covering the heavy tray structural install, the cable loading and fill the tray must support, and the sharp-edge and at-height hazards.

An Underslab Raceways for Electrical Systems Installation AHA covering the underslab raceway install, the buried-before-the-pour inaccessibility and concrete coordination, and the ground-level trenching work.

A Rigid Conduit for Explosion Protection Installation AHA covering the explosionproof conduit install, the explosionproof integrity that must contain internal arcs and the hazardous classified-location atmosphere, and the heavy rigid conduit work.

A Vibration and Seismic Controls for Electrical Systems Installation AHA covering the seismic-restraint install, its life-safety requirement to hold in an earthquake, and the heavy structural anchoring and overhead work.

A Schedules for Electrical AHA covering the electrical schedules, their accuracy as a safety foundation for future work, and the verification against the installed system.

A Commissioning of Electrical Systems AHA covering the electrical commissioning, the first-energization transition from de-energized to live, and the energized functional testing and qualified coordination.

An Instrumentation and Control for Electrical Systems Installation AHA covering the electrical I&C install, the high-energy interface and CT hazards, and the safety-critical protective-relay integrity.

A Medium-Voltage Electrical Distribution Installation AHA heading the MV family: the MV distribution scope, the catastrophic medium-voltage energy severity and strict discipline, and the heavy coordinated high-energy system.

A Substations Installation AHA covering the substation install, the concentrated high-energy hazard and heavy-civil construction, and the outdoor exposure and utility-service interface.

A Medium-Voltage Transformers Installation AHA covering the MV transformer install, the heavy-unit rigging and oil-fire and containment concerns, and the medium-voltage energy discipline.

A Medium-Voltage Switchgear Installation AHA covering the MV switchgear install, the switching operation as the prime arc-flash event and breaker racking, and the heavy metal-enclosed lineup.

A Medium-Voltage Metering Installation AHA covering the MV metering install, the instrument-transformer connections to high energy and the signature open-CT lethal-voltage hazard, and the metering accuracy.

A Medium-Voltage Circuit Protection Installation AHA covering the MV protection install, the safety-critical fault-clearing and coordination, and the medium-voltage energy discipline.

A Low-Voltage Electrical Transmission Installation AHA covering the LV transmission install, the high-current character and still-lethal hazards of low voltage, and the large feeder and busway work.

A Low-Voltage Electrical Service Entrance Installation AHA covering the service-entrance install, the utility-fed line side that stays energized, and the high fault current and utility coordination.

A Low-Voltage Transformers Installation AHA covering the dry-type LV transformer install, the heat dissipation and ventilation concerns, and the indoor placement and low-voltage discipline.

A Low-Voltage Switchgear Installation AHA covering the LV switchgear install, the high-current arc-flash and drawout-breaker racking, and the heavy lineup and low-voltage discipline.

A Switchboards and Panelboards Installation AHA covering the distribution-board install, the branch-circuit division and the common hazard of working in energized panels, and the widely distributed low-voltage work.

An Enclosed Bus Assemblies Installation AHA covering the busway install, the joint integrity that carries full current and the heavy overhead work, and the plug-in taps to energized bus.

A Power Distribution Units Installation AHA covering the PDU install, the critical-facility context of working near live equipment and the integrated transformer-and-distribution unit, and the low-voltage discipline.

A Low-Voltage Distribution Equipment Installation AHA heading the family: the LV distribution equipment scope, the shared don't-underestimate-low-voltage and energized-equipment hazards, and the heavy install and de-energization discipline.

A Low-Voltage Circuit Protective Devices Installation AHA covering the protective-device install, the device rating and interrupting capacity and the personnel-protective GFCI/AFCI functions, and the proper install.

A Low-Voltage Controllers Installation AHA covering the controller install, the motor-control hazard of equipment starting and the energized MCC bucket work, and the low-voltage discipline.

A Facility Electrical Power Generating and Storing Equipment Installation AHA heading the family: the on-site source scope, the source-side energy that can't simply be de-energized, and the equipment-specific and qualified-work concerns.

A Photovoltaic Collectors Installation AHA covering the PV array install, the DC energized-in-daylight hazard that can't be switched off, and the roof and array at-height work.

A Packaged Generator Assemblies Installation AHA covering the genset install, the multi-hazard engine package and the automatic-start self-energizing hazard, and the heavy install with fuel and exhaust systems.

A Diesel Engine-Driven Generators Installation AHA covering the diesel genset install, the diesel fuel system and engine prime-mover hazards, and the fuel reliability for standby power.

A Battery Equipment Installation AHA covering the stationary battery install, the always-present stored energy and chemical hazards, and the heavy handling and ventilation.

An Automatic Transfer Switch Installation AHA covering the ATS install, the multiple live sources in one enclosure and the automatic transfer operation, and the source-isolation interlock.

An Electrical and Cathodic Protection AHA heading the facility protection systems: the lightning, cathodic, surge, and grounding protection scope, their protective and often latent correctness, and the varied install.

A Facility Lightning Protection Installation AHA covering the lightning-protection install, the rooftop at-height work, and the strike-conduction path correctness and bonding that prevent fire and damage.

A Cathodic Protection AHA covering the corrosion-protection install, the sacrificial-anode and impressed-current systems, and the buried excavation work and latent protective correctness.

A Surge Protective Devices Installation AHA covering the SPD install, the correct device type and coordination and the critical short ground connection, and the work in energized equipment.

A Lighting Installation AHA heading the family: the lighting scope, the dominant at-height overhead install and fixture handling, and the routine branch-circuit electrical work.

An Interior Lighting Installation AHA covering the interior lighting install, the ceiling integration and independent fixture support, and the at-height work in finished and occupied spaces.

An Emergency Lighting Installation AHA covering the emergency lighting install, the life-safety function that must work on power loss and its backup power, and the egress coverage and at-height install.

An Exit Signs Installation AHA covering the exit sign install, the life-safety egress marking and visibility, the must-work-on-power-loss backup, and the placement for continuous marking.

A Classified Location Lighting Installation AHA covering the hazardous-location lighting install, the explosionproof rated-fixture integrity that prevents ignition, and the work in classified areas.

A Special-Purpose Lighting Installation AHA covering specialty lighting, the application-specific requirements and hazards that vary by type, and the general lighting install.

An Exterior Lighting Installation AHA covering the exterior lighting install, the pole and high-mast at-height work and pole erection, and the outdoor exposure and underground-fed circuits.

A Communications AHA heading the Division 27 communications systems: the cabling and network scope, the low-energy signal-and-data character, and the cabling and pathway install.

An Operation and Maintenance of Audio-Video Communications AHA covering the servicing of operating AV systems, the work on in-use equipment in occupied spaces, and the at-height AV equipment service.

A Cable Trays for Communications Systems Installation AHA covering the tray install, the at-height overhead work and the heavy cable fill of cabling-intensive communications, and the low-energy context.

A Structured Cabling Installation AHA covering the horizontal cabling install, the extensive at-height cable pulling and the termination and data integrity, and the fiber and low-energy context.

A Communication Backbone Cabling Installation AHA covering the backbone install, the vertical riser work between floors and floor-opening hazards, and the high-capacity often-fiber trunk cabling.

A Communications Horizontal Cabling Installation AHA covering the horizontal cabling install, the extensive at-height ceiling cable pulling to every outlet, and the distance limits and performance.

A Data Communications Installation AHA covering the data network system install, the equipment-room and rack work, and the system integration in the low-energy context.

A Data Communications Network Equipment Installation AHA covering the network equipment install, the rack-mounting and heavy-equipment handling, and the equipment power and heat.

A Voice Communications Installation AHA covering the voice system install, the VoIP convergence with the data network, and the life-safety emergency-calling requirement.

An Audio-Video Communications Installation AHA covering the AV communications install, the display and projector mounting and heavy-display handling, and the AV cabling and integration.

An Audio-Video Systems Installation AHA covering the AV system integration, the signal distribution and processing and control, and the head-end equipment in the low-energy context.

A Cable Antenna Television Systems Installation AHA covering the coaxial RF distribution, the rooftop antenna at-height install and antenna grounding, and the headend and distribution.

An Electronic Digital Systems Installation AHA covering the broad category of low-voltage electronic digital systems, their common equipment and cabling install and integration, and the low-energy character.

A Distributed Communications and Monitoring Systems Installation AHA covering the facility-wide distributed install, the coverage completeness that can be life-safety, and the low-energy context.

A Distributed Audio-Video Communications Systems Installation AHA covering the multi-zone distributed AV, the extensive facility-wide at-height install, and the AV distribution and integration.

An Electronic Detection and Alarm Installation AHA heading the detection and alarm systems: the detect-and-alert function, the life-safety reliability of detection and notification, and the distributed install.

A Fire Detection and Alarm Installation AHA covering the life-safety fire detection and notification, the fire-safety-function cause-and-effect integration, and the thorough acceptance testing.

A Mass Notification Systems Installation AHA covering all-hazards emergency notification, the life-safety coverage and intelligibility, and the fire alarm integration and distributed install.

An Electronic Monitoring and Control Installation AHA covering the monitor-and-control function, the centralized monitoring and integration, and the distributed low-energy install.

An Electronic Detention Monitoring and Control Systems Installation AHA covering the correctional security-critical environment, the central control room and detention door control, and the reliability and emergency-egress balance.

A Fire Detection and Alarm Conduit Installation AHA covering the raceway for fire alarm wiring, the circuit protection and survivability of the life-safety circuits, and the conduit install.

An Earthwork AHA heading the Division 31 earthwork: the excavation, grading, and soil scope, the high-hazard heavy-civil character (cave-ins, heavy equipment, underground utilities), and the excavation-safety fundamentals.

A Common Work Results for Earthwork AHA covering the shared earthwork requirements and results, the core earthwork hazards (cave-in, equipment, utilities), and the compaction and testing results.

A Geotextiles for Earthwork Installation AHA covering the geotextile functions and correct material, the fabric placement in the earthwork, and the earthwork-context hazards.

A Geosynthetic Clay Liners Installation AHA covering the low-permeability barrier and containment function, the seal integrity and bentonite hydration behavior, and the earthwork-context install.

A Site Clearing AHA heading the clearing operations: the general site clearing scope, the clearing hazards (falling trees, equipment, debris, site unknowns), and the earthwork context.

A Clearing and Grubbing AHA covering the grubbing of roots and stumps below grade, the reason grubbing produces a stable subgrade, and the clearing plus stump-removal hazards.

A Selective Clearing AHA covering the selectivity of removing only designated vegetation, the critical protection of the preserved trees and features, and the precision clearing and clearing hazards.

A Selective Tree and Shrub Removal and Trimming AHA covering the arboricultural tree work, the at-height climbing and aerial-lift work, and the trimming near power lines and structures.

An Earth Stripping and Stockpiling AHA covering the topsoil stripping and salvage, the stockpile management and stability, and the earthmoving equipment hazards.

An Earth Moving AHA covering the bulk earth movement and cut-and-fill, the heavy-equipment-centric operations and haul roads, and the earthwork safety.

A Grading AHA covering the precise shaping to design grades, the drainage and slope control, and the grading equipment and earthwork safety.

An Excavation and Fill AHA covering the excavation and cave-in hazard, the engineered fill and compaction for structural support, and the earthwork safety.

An Excavation and Trenching AHA covering the acute trench cave-in hazard, the trench-specific protective systems and competent-person inspection, and the utility and linear trench work.

A Vacuum Excavation AHA covering the non-destructive utility-safe excavation, the air and hydro vacuum method and its equipment hazards, and the earthwork context.

A Dewatering AHA covering the groundwater control for dry stable excavations, the dewatering methods and discharge, and the water-related and excavation hazards.

A Compaction AHA covering the compaction to required density for stability, the compaction equipment and method, and the compaction-equipment hazards.

An Erosion Control Mats and Blankets Installation AHA covering the erosion protection and vegetation establishment, the installation and anchoring, and the slope-work hazards.

An Earthwork Methods AHA covering the methods and procedures for earthwork, the selection of the appropriate method, and the core earthwork hazards across methods.

A Termite Control AHA covering the termiticide application and chemical handling, the barrier effectiveness, and the regulatory and applicator requirements.

A Soil Stabilization AHA heading the stabilization work: the purpose of improving soil, the mechanical and chemical methods, and the stabilization hazards including the chemical agents.

A Cement Soil Stabilization AHA covering the cement chemistry and broad applicability, the mix-and-cure application, and the cement dust and caustic hazards.

A Lime Soil Stabilization AHA covering the lime-clay chemistry for clay soils, the mellowing application, and the strongly caustic lime hazards.

A Fly-Ash Soil Stabilization AHA covering the byproduct fly ash and its cementitious/pozzolanic action, the application often combined with an activator, and the fly-ash dust hazards.