NFPA CFI-I cheat sheet
NFPA CFI-I · Keep the key ideas within reach.
Fire Inspector I: Codes, Standards, and Inspection Authority
NFPA 1 (Fire Code) is a code adopted into law; NFPA 101 (Life Safety Code) and NFPA 80, 13, 25, 72 are standards referenced by the code, so enforcement authority flows from the adopted code edition, not the standard itself.
The edition adopted by the jurisdiction controls: an inspection is judged against the locally adopted code edition, and later editions do not apply retroactively unless the AHJ adopts them or the condition is an imminent hazard.
Inspection authority derives from statute or ordinance; the inspector's legal powers are entry, examination, and notice of violation, and entry without consent generally requires an administrative warrant or statutory right of entry.
NFPA 1 Chapter 1 establishes the AHJ's authority to enter, inspect, and require correction; it also sets the process for permits, plan review, and appeals, which the inspector must follow before escalating enforcement.
A violation notice typically must state the code section violated, the corrective action, and a compliance deadline; failure to cite the specific section weakens later legal action.
Occupancy classification under NFPA 101 drives nearly every requirement (egress, sprinklers, alarms), so misclassifying a mixed-use building is a common and consequential inspection error.
Inspection frequency is set locally, often by occupancy risk; NFPA 1 does not mandate a universal annual inspection cycle, so the inspector follows the jurisdiction's schedule rather than a national interval.
Documentation must be contemporaneous and objective: record what was observed, where, when, and the code basis, because inspection reports become evidence in appeals and enforcement hearings.
Fire Inspector I: Means of Egress and Life Safety
Egress width is measured in inches per occupant: NFPA 101 sets 0.2 in per occupant for level components and 0.15 in per occupant for stairs, ramps, and other egress components in most occupancies.
The occupant load is computed by dividing floor area by the occupant load factor for the use (for example, 100 sq ft per person for business, 15 sq ft per person for concentrated assembly without fixed seating), then applying the egress-width formula.
Means of egress has three parts: exit access, the exit, and exit discharge; a deficiency in any one part is a violation even if the others comply.
Travel distance is measured along the natural path of travel to the nearest exit, and the maximum varies by occupancy and sprinkler protection; the inspector measures the actual walking path, not a straight line.
Two remote exits are required where the occupant load or hazard exceeds thresholds, and remoteness is measured diagonally: the exits must be separated by at least one-half the diagonal of the room or area.
Exit signs must be illuminated, marked with the word EXIT, and visible from any point in the path of travel; internally illuminated and self-luminous signs have specific power-source and testing requirements.
Emergency lighting must provide the required illumination for the duration specified by code (commonly 90 minutes) and must be tested monthly for 30 seconds and annually for the full duration.
Doors in a means of egress must swing in the direction of travel where the occupant load is 50 or more or the space is a high hazard; hardware must allow single-motion release without a key, special knowledge, or effort.
Exit access corridors, stair enclosures, and exit discharge must be kept unobstructed; storage in corridors and locked, blocked, or chained exit doors are among the most common and most serious violations found.
Fire Inspector I: Fire Protection Systems and Water Supply
Automatic sprinkler systems must be inspected, tested, and maintained under NFPA 25; the standard sets frequencies for gauges, alarm devices, main drain tests, and valve exercises, and the inspector verifies records against those frequencies.
Sprinkler control valves must be supervised open or locked open; an unsupervised, closed control valve defeats the system and is a critical violation regardless of other system condition.
The inspector confirms the sprinkler system's design basis matches the current occupancy and hazard: a change in storage height, commodity class, or use can exceed the original design without any physical damage.
Fire department connections must be accessible, unobstructed, and marked with signage identifying the system served; caps must be in place and the connection must not be blocked by vehicles, fencing, or landscaping.
Standpipe systems under NFPA 14 require the inspector to verify hose valve accessibility, caps, threads compatible with the fire department, and that the system is not used for other purposes.
Fire pumps require weekly no-flow churn runs and annual flow testing; the inspector checks the pump room is not used for storage and that the controller is in the correct automatic position.
Water supply adequacy is verified through flow test data and the system's hydraulic design; static and residual pressure readings from a hydrant flow test are used to estimate available flow at the required residual pressure.
Fire alarm systems under NFPA 72 require inspection and testing by qualified personnel, and the inspector verifies that initiating devices, notification appliances, and monitoring are functional and that test records exist.
Portable extinguishers under NFPA 10 must be mounted, accessible, properly rated for the hazard, and inspected monthly with annual maintenance; the inspector checks the tag and the travel distance to the nearest extinguisher.
Fire Inspector I: Hazardous Materials, Storage, and Processes
Flammable and combustible liquids are classified by flash point and boiling point under NFPA 30; the class of the liquid determines allowable container size, storage cabinet limits, and whether a flammable liquid storage cabinet is required.
A flammable liquid storage cabinet is limited to 60 gallons of Category 1-3 flammable liquids or 120 gallons of Category 4 combustible liquids per cabinet, with no more than three cabinets in a single fire area without sprinkler protection.
Quantities exceeding the maximum allowable per control area trigger requirements for a hazardous materials inventory statement, additional separation, or a dedicated hazardous materials storage building.
Compressed gas cylinders must be secured upright, separated from oxidizers, and stored away from heat and exits; oxygen and fuel gas cylinders require separation or a barrier when stored together.
NFPA 55 and NFPA 400 govern compressed gases and hazardous materials; the inspector verifies signage, separation distances, ventilation, and that the quantity on site does not exceed the permit allowance.
Dust-producing operations and combustible particulate solids fall under NFPA 652 and NFPA 664; housekeeping, ignition-source control, and dust collection are inspection points because accumulated dust is a deflagration hazard.
Hot work operations require a written permit, fire watch, and clearance of combustibles within the specified radius; the inspector verifies the permit process and that the fire watch remains in place during and after the work.
Storage must maintain clearance below sprinkler deflectors per NFPA 13 and the occupancy's storage arrangement; high-piled storage may require a specific design and inspection under NFPA 13 and local high-piled storage rules.
The inspector verifies that hazardous materials are labeled, that safety data sheets are available, and that quantities and locations match the permit; unpermitted increases in quantity are a violation even when storage is otherwise compliant.
Fire Inspector I: Inspection Process, Records, and Enforcement
The inspection sequence is prepare (review prior reports and permits), observe, document, and report; each step produces a record that supports the next, and skipping preparation leads to inconsistent findings.
Findings should be classified by severity: imminent hazard (immediate action or evacuation), serious violation (short deadline), and routine violation (standard correction period); the classification drives the enforcement timeline.
An imminent hazard allows the AHJ to order immediate correction or occupancy restriction without waiting for the normal appeal period; documentation must justify the hazard classification.
Photographs, measurements, and witness statements should accompany the narrative report; the report must distinguish observed conditions from assumptions or secondhand information.
Reinspection verifies correction, and the inspector should record the date, the corrected condition, and any remaining deficiencies; closing a violation without verification undermines the enforcement record.
The appeal process is defined by the adopted code and local ordinance; the inspector must inform the owner of appeal rights and deadlines when issuing a notice of violation.
Permits are required for installation, alteration, and certain operations (sprinklers, alarms, hot work, hazardous materials, tents, and open burning); inspecting without confirming the permit status can miss unpermitted work.
Records retention and public-records rules govern inspection files; the inspector should assume every report may be requested, so entries must be factual, dated, and free of opinion or speculation.
Fire Inspector I: Building Construction and Fire Behavior
Fire resistance ratings are expressed in hours and apply to structural members, walls, floors, and shaft enclosures; the rating required depends on construction type and occupancy, and the inspector verifies ratings against approved plans and listed assemblies.
Construction types I through V in NFPA 220 are defined by the combustibility of structural elements: Type I is noncombustible with high fire resistance, and Type V is wood frame with little or no fire resistance.
Fire walls and fire barriers differ: a fire wall divides a building into separate buildings and must be structurally independent, while a fire barrier subdivides a single building and must be continuous from floor to deck.
Opening protectives (fire doors and fire windows) must be rated, self-closing or automatic-closing, and unobstructed; propping a fire door open is a violation because it defeats the barrier's intended function.
Penetrations and joints must be protected with listed through-penetration and joint systems matching the assembly's rating; unsealed penetrations in rated walls are common and serious deficiencies.
Fire behavior basics: fire grows through the incipient, growth, fully developed, and decay stages; flashover marks the transition to full involvement and is driven by heat release rate and ventilation.
Smoke and heat move by convection, and the neutral plane in a compartment shifts with ventilation; the inspector uses this to evaluate smoke control, draft stops, and smoke barrier integrity.
Means of egress and fire resistance interact: a rated corridor or stair enclosure only performs if its doors, penetrations, and openings are maintained, so the inspection must check the assembly as a system.