ICC FM key terms

The adopted set of regulations that establishes minimum requirements for safeguarding life and property from fire and explosion hazards in new and existing buildings and premises.

The organization, office, or individual responsible for approving equipment, materials, installations, or procedures and for enforcing the fire code within a given area.

A planned, ongoing effort to teach specific audiences the behaviors that prevent fires and reduce injury, typically using defined objectives, delivery methods, and evaluation measures.

Outreach activities delivered to the general community, such as school visits, station tours, and media campaigns, intended to raise awareness of fire hazards and safe responses.

A structured process of identifying potential fire hazards, estimating the likelihood and severity of harm, and prioritizing which risks to address first.

Any condition, material, or activity that increases the likelihood of ignition or the severity of a fire, such as accumulated combustibles or blocked exits.

A rehearsed evacuation exercise that tests occupant response, alarm notification, exit use, and assembly procedures under simulated emergency conditions.

A documented scheme describing how occupants leave a building during an emergency, including exit routes, assigned duties, and provisions for people needing assistance.

A pre-designated outdoor location where evacuated occupants gather so that accountability can be taken and emergency responders receive accurate information.

A letter classification (A, B, C, D, or K) that identifies which types of fuel an extinguisher is designed to suppress safely and effectively.

The formal examination of construction documents by the code official to confirm that proposed work complies with adopted fire and building regulations before permits are issued.

Written authorization issued by the code official allowing specified construction or installation work to proceed based on approved plans and conditions.

A document issued after inspection confirming that a completed building or portion of it may lawfully be occupied because it meets applicable code requirements.

The rate of water, usually expressed in liters or gallons per minute, that must be available at a specified residual pressure to control a fire in a given building.

The maximum permitted distance between hydrants, and between hydrants and buildings, set by code so that responding crews can access water without excessive hose lays.

The duration, in hours or minutes, that a building assembly withstands a standard fire test while continuing to perform its intended separating or structural function.

A fire-resistance-rated wall with protected openings that extends continuously from the foundation to or through the roof and divides a building into separate fire areas.

The category assigned to a building or space based on how it is used, which then determines the fire protection features and egress requirements that apply.

The continuous, unobstructed path of travel from any point in a building to a public way, comprising exit access, the exit itself, and exit discharge.

A network of piping fitted with heat-activated sprinklers that discharges water onto a fire automatically and, in most designs, also triggers the fire alarm.

An integrated set of initiating devices, control equipment, and notification appliances that detects a fire condition and warns occupants and responders.

Any energy input, such as a flame, spark, hot surface, or electrical fault, that can supply enough heat to start combustion in available fuel.

A simple model showing that fuel, oxygen, and heat must all be present together for flaming combustion to occur and continue.

The location where a fire began, determined from burn patterns, witness accounts, and physical evidence, and often the starting point of the cause determination.

The broader room, compartment, or outdoor zone that contains the point of origin and shows the earliest fire effects, such as heaviest damage or lowest char.

A visible shape or discoloration left by fire, smoke, or heat on a surface that an investigator interprets to infer direction of spread and relative fire intensity.

A V-shaped char mark on a vertical surface that typically widens upward from a concentrated heat source and helps locate where a fire started.

A material, often a flammable liquid, that increases the rate at which fire spreads; its presence may be detected through laboratory analysis of debris samples.

Material collected from a fire scene, packaged in an airtight container, and submitted to a laboratory to test for residues of ignitable liquids.

The documented, unbroken record of who handled evidence, when, and where, used to show that items were not altered before analysis.

The conclusion, stated with a level of confidence, that classifies a fire as accidental, incendiary, or undetermined and explains the factors that produced it.

The zone where structures and other human development meet or intermingle with undeveloped wildland fuels, creating elevated risk of fire spreading between them.

The managed area around a structure where vegetation, debris, and other fuels are reduced or arranged to slow fire spread and give firefighters a safer place to work.

The area immediately surrounding and including a home, typically extending outward about 60 meters, where fuel and structural details most influence ignition potential.

A downwind rain of burning particles that can ignite roofs, gutters, decks, and near-home fuels far ahead of the main fire front.

A burning or glowing piece of material lofted by wind and convection that can start new spot fires well beyond the active fire perimeter.

A new fire ignited ahead of the main fire front by firebrands or radiant heat, often complicating containment and threatening structures unexpectedly.

A strip of land where vegetation has been reduced or replaced so that fire spread is slowed, providing a line from which suppression can be conducted.

A document prepared in advance that records access routes, water sources, hazards, and structure details for a WUI area to speed tactical decisions during an incident.