NWCG FFT1/FFT2 key terms

A four-part safety checklist - Lookouts, Communications, Escape routes, and Safety zones - that firefighters establish and verify before engaging a fire, and recheck whenever fire behavior or tactics change.

A list of 18 recognized conditions, such as wind shifts or fire on a slope below you, that warn of increasing danger and require the crew to pause, reassess, and correct the situation.

An area cleared of fuels where a firefighter can survive without a shelter, sized by fuels, slope, and expected flame length; it is the last-resort protection when escape routes fail.

A pre-identified path from the work area to a safety zone that is walkable, free of snags and heavy fuels, and short enough to travel before the fire arrives.

A chosen spot for fire shelter use that is free of heavy fuels, cleared to mineral soil if time allows, and positioned away from overhead hazards and steep uphill fuels.

The last-resort action of deploying a fire shelter, which requires clearing a site, getting low with face down and feet toward the heat, and remaining inside until the flame front passes.

A situation where a firefighter is unexpectedly surrounded by fire or cut off from escape routes, usually caused by a rapid fire behavior change, and must rely on a shelter or safety zone.

The three elements needed for combustion - heat, fuel, and oxygen - used to explain ignition and to plan suppression actions that remove one leg of the triangle.

A standardized description of a fuel bed's vegetation type, loading, size class, and arrangement, used with weather and slope inputs to predict fire behavior such as spread rate and flame length.

The forward speed of the flaming front, usually expressed in chains per hour, driven by wind, slope, fuel arrangement, and fuel moisture.

The measured length of the flaming zone, used to estimate fireline intensity and to judge whether handline, dozer line, or aerial support can safely attack the fire.

Observable signs such as crowning, spotting, torching, large flame lengths, and rapid spread that signal the fire is beyond direct control and requires disengagement or a change in strategy.

A change in wind direction or speed, often from a frontal passage or thunderstorm outflow, that can turn a flanking fire into a head fire and trap crews on the wrong side.

A new ignition caused by firebrands lofted ahead of the main front, which can establish behind control lines and threaten crews working the original fire.

A secure location such as a road, blackened area, or water's edge where a fireline starts, giving the crew a safe origin and preventing the fire from getting behind them.

A fireline constructed with hand tools, typically to mineral soil, dug from an anchor point and sized to the expected fire intensity so it can be held by available resources.

A fireline constructed by a bulldozer, which is fast and effective in light fuels but requires a cleared path, a spotter, and later rehabilitation of the disturbed soil.

The phase after line construction in which crews extinguish hotspots, cold-trail the edge, and remove heat near the line so the fire cannot escape during a wind event.

The work of keeping a completed fireline secure by patrolling, checking for spot fires and slop-over, and reinforcing weak sections until the fire is contained.

A combined axe and grub hoe hand tool used for digging fireline, cutting light roots, and chopping; it must be kept sharp and carried with the blade guarded.

A hand tool with a flat cutting edge on one side and a rake on the other, used for scraping fireline to mineral soil and for light chopping and raking.

The set of practices for safe chainsaw use, including proper personal protective equipment, a clear work area, planned escape paths, and shutting down before moving through the line.

A hose-laying method where the pump stays at the water source and hose is extended forward with nozzles added as the line advances, allowing quick attack and easy extension.

The practice of transmitting clear, timely updates on fire behavior, location, resource status, and hazards so that supervisors and adjacent crews can adjust tactics and stay safe.

Using assigned channels, clear and brief transmissions, proper call signs, and priority for emergency traffic, while avoiding unnecessary chatter that blocks critical communications.

The number of subordinates or resources one supervisor can effectively direct, commonly three to seven with five as a guide, used to structure incident organization.

A standardized management framework with common terminology, defined roles, and modular organization used to coordinate resources across agencies on wildland fires and other incidents.

The line of authority from the incident commander down through section, division, and crew supervisors, which firefighters follow for orders, reporting, and resolving problems.

Knowledge of triage, defensible space, and the decision to defend or leave a structure, recognizing that life safety and firefighter survival take priority over property.

The area around a structure where fuels and vegetation are reduced or modified so that firefighters can safely defend it and the building has a better chance of surviving.

The role of guiding heavy equipment or aircraft by maintaining visual contact, warning of hazards, and keeping people clear of the operating area and swing radius.

Standardized arm and hand movements used to direct heavy equipment operators and helicopter pilots when radio communication is impractical or unreliable.

The practice of approaching a helicopter only when signaled by the pilot or crew, staying low, keeping clear of the tail rotor and rotor arc, and never approaching from uphill.

The planned balance of work and rest hours, commonly one hour of rest for every two hours worked on extended incidents, used to limit fatigue and maintain safety.

Monitoring and controlling cumulative fatigue through work/rest schedules, sleep, nutrition, and hydration, since fatigue degrades judgment and reaction time on the fireline.

Drinking fluids regularly and replacing electrolytes during hot, physical work, because dehydration reduces endurance and heat illness risk and impairs decision-making.

A record of required training, experience, and position performance tasks that a trainee must complete and have signed off before being qualified in a position.

The documented assessment of a trainee's performance in a position against stated standards, completed by a qualified evaluator and used to recommend certification.