Specially trained and equipped fire crew for initial attack on a fire.

An application of fire danger rating to support regulation of contractors involved in land management activities for fire prevention purposes in California.

Communication call sign assigned as a unique identifier to an aircraft.

Fire crew member in the progressive method of line construction who cuts and clears away brush, small saplings, vines, and other obstructions in the path of the fireline; usually equipped with ax or brush hook, or pulaski.

A search technique typically dividing into squares the specific origin area and ignition area of a wildland fire to systematically search for microscale fire pattern indicators and evidence.

Smoke which becomes visible only at intervals.

The agency having responsibility either geographical or functional, related to their legal responsibilities and authorities.

Arsonist, especially a repetitive firesetter.

The decrease in concentration of airborne pollutants as they spread throughout an increasing volume of atmosphere.

A control strategy used in managing smoke from prescribed fires in which smoke concentration is reduced by diluting it through a greater volume of air, either by scheduling during good dispersion conditions or burning at a slower rate.