The organizational element having responsibility within a functional area in the incident command structure such as operations, planning, logistics or finance.

An appropriate management response to wildfire or prescribed fire that results in curtailment of fire spread and eliminates all identified threats from the particular fire.

The range of options available for response to a wildfire.

Any fire which threatens to destroy life, property, or natural resources, and (a) is not burning within the confines of firebreaks, or (b) is burning with such intensity that it could not be readily extinguished with ordinary tools commonly available.

In the 1978 version of NFDRS, the herbaceous stage when herbaceous fuel moisture is between 120% and 30%.

Primary facility of the Multi-agency Coordination System (MACS); houses staff and equipment necessary to perform the MACS function.

Measured from the surface upward, the height to which relatively vigorous mixing occurs due to convection.

Debris resulting from such natural events as wind, fire, or snow breakage; or such human activities as road construction, logging, pruning, thinning, or brush cutting. It includes logs, chunks, bark, branches, stumps, and broken understory trees or brush.

The fuel that is first set on fire by the heat of ignition.

The exercise of authority over initiating, conducting, or terminating any operation. Often associated with aviation operations.