An Isolated" fire or a fire which is "boxed in" or "closed off" from the rest of the structure. An example of this is a fire in a room where all the windows and doors are closed preventing the fire from spreading to other rooms.

Two or more individual incidents located in the same general area which are assigned to a single incident commander or unified command.

A water / sofactant (foam) mixture, with compressed air forced into the mix. The result is a very homogeneous, small air bubble" distribution; the resulting suppression agent is the consistency of soggy shaving cream consisting of relatively pure surface area and little actual water. CAF is gaining favor in selected compartmental fire scenarios because of its high (explosive) conversion rate on top of the penetrative advantages of the sofactant. It is also inappropriate for many fire scenarios because of that conversion rate

The least aggressive wildfire suppression strategy which can be expected to keep the fire within established boundaries of constructed firelines under prevailing conditions.

A large, typically urban, fire involving numerous structures; loosely defined as enveloping an area equivalent to one or more square blocks. Compare with firestorm.

A moderately aggressive wildfire suppression strategy which can be expected to keep the fire within established boundaries of constructed firelines under prevailing conditions.

An inclusive term for all constructed or natural barriers and treated (retardant) fire edges used to control a fire.

See Prescribed Burn.

A progressive line construction duty involving self-sufficient crews which build fireline until the end of the operational period, remain at or near the point while off duty (in a spike camp), and begin building fireline again the next operational period where they left off.

A pump capable of spraying foam used at airports.

Fire burning with a low flame and spreading slowly.

Arrangement of hose on a pumper such that it can be quickly unloaded from either side of the apparatus; often pre-connected to a pump outlet and equipped with a suitable nozzle.

A fire that advances from top to top of trees or shrubs more or less independent of a surface fire. Crown fires are sometimes classed as running or dependent to distinguish the degree of independence from the surface fire.

A fire that raises from ground into the tree crowns and advances from treetop to treetop. To intermittently ignite tree crowns as a surface fire advances.