Fire Inspector cheat sheet

Model codes (IFC) are adopted by a jurisdiction with amendments; always cite the locally adopted edition and amendment, not the model code alone, when writing a violation notice.

Occupancy classification drives nearly every requirement: assembly (A), business (B), educational (E), factory/industrial (F), high-hazard (H), institutional (I), mercantile (M), residential (R), storage (S), utility (U). Classify before applying egress, sprinkler, or fire alarm thresholds.

Occupant load = floor area divided by the tabulated load factor for the use; for concentrated assembly without fixed seats, count actual occupants and never use a factor below the code minimum for that use.

Required egress width is based on occupant load: the code sets a per-occupant inch multiplier (commonly 0.2 in/occupant for level components and 0.15 in/occupant for stairs, with minimums of 44 in for corridors serving 50+ occupants and 36 in for stairs).

Two remote exits are generally required when occupant load exceeds the threshold for the occupancy (commonly 49 for assembly/educational, 50 for business, 49 for mercantile per model code tables); confirm the adopted table value.

Means of egress has three parts: exit access, the exit, and the exit discharge. A violation in any one component can render the whole path noncompliant.

Fire-resistance-rated separations are expressed in hours (1-hour, 2-hour); opening protectives (fire doors, fire dampers, fire windows) must carry a rating label matching the required opening protection.

Inspection sequence: pre-inspection file review, arrival and identification, systematic walk of egress and fire protection systems, documentation with photos and measurements, then written notice with code citation, correction deadline, and appeal rights.

Automatic sprinkler design is defined by density (gpm/ft²) over a remote area (ft²) for a hazard class; light hazard commonly 0.10 gpm/ft² over 1,500 ft², ordinary hazard group 1 commonly 0.15 gpm/ft² over 1,500 ft² - verify against the adopted standard edition.

Sprinkler inspection points: control valve open and supervised, main drain flow test results, alarm and retard chamber operation, gauge readings (supply vs. system), spare head cabinet stocked with matching heads and wrench, and clearance below deflectors (commonly 18 in).

Standpipe classes: Class I for fire department use (2.5 in outlets), Class II for occupant use (1.5 in hose), Class III for both; system demand and hose valve location follow the class.

Fire alarm inspection verifies initiating devices, notification appliance audibility/visibility, annunciation, and monitoring. Audibility target in sleeping areas is commonly 75 dBA at the pillow or 15 dBA above ambient.

Portable extinguisher selection follows the class of fire (A ordinary combustibles, B flammable liquids, C energized electrical, D combustible metals, K cooking media) and the travel distance limits in the code.

Hazardous materials inspection uses the NFPA 704 diamond (health, flammability, instability, special) plus maximum allowable quantities per control area; exceeding MAQ triggers a higher-hazard classification and stricter construction.

Enforcement ladder: verbal warning, notice of violation with correction date, citation, then permit suspension or legal action; each step must document the code section, observed condition, and required corrective action.

Records that support enforcement: inspection reports, photographs with timestamps, test and maintenance records for sprinklers and alarms, permits and plan approvals, and a written re-inspection log.