Codes, Standards, and Life Safety
This domain covers NYC Construction Codes, fire safety, and environmental and occupational rules that apply to building operation. Questions test occupancy and egress, fire protection systems, permits, inspections, asbestos and refrigerant handling, and OSHA-style safety programs.
Core rules and concepts
- Permits and inspections: DOB permits are required for most alterations; FDNY permits cover hot work, place-of-assembly operations, and certain storage. Boilers, elevators, backflow preventers, sprinkler systems, and fire alarms have recurring inspection and certification requirements.
- Egress: calculate occupant load, provide the required number and width of exits, keep exit paths clear, maintain panic hardware, and post occupant-load signs where required.
- Fire protection: sprinkler control valves must be open and supervised; standpipes, extinguishers, fire alarms, and elevator recall must be tested. Impairments need a documented program, notifications, and a fire watch where required.
- Fire-safety staffing: where the Fire Code requires a Fire Safety Director or deputy, ensure coverage, drills, and recordkeeping.
- Environmental: asbestos survey before renovation/demolition and licensed abatement; refrigerant leak repair and technician certification; lead-safe practices; stormwater and waste rules.
- Occupational safety: lockout/tagout, permit-required confined space, hazard communication with SDS, PPE, fall protection, and scaffolding.
Worked example
A 40,000 sq ft light-hazard office floor needs Class A portable extinguishers. NFPA 10 allows a maximum floor area of 11,250 sq ft per extinguisher and a maximum travel distance of 75 ft. Area calculation: 40,000 ÷ 11,250 = 3.56, so four extinguishers by area. Then check travel distance from every point; partitions may require a fifth unit even though the area math passes.
Traps that cost marks
- Treating a certificate of occupancy as approval for a new use without checking egress and fire protection.
- Closing a sprinkler valve without impairment procedures or fire watch.
- Assuming 'grandfathered' means maintenance-free.
- Missing an FDNY hot-work permit or fire watch.
- Letting building staff perform licensed elevator or asbestos work.