Time between application of an ignition source and self-sustained combustion of a fuel.

A management distinction, made to satisfy legal and budget constraints, based on whether the ignition source was planned or unplanned. Under the implementation guidance, only two types of wildland fire - wildfire and prescribed fire - are recognized.

Regular number of hours worked per week by a full-time firefighter, excluding overtime.

Device for combining measured ratings of various fire danger factors into numerical classes or rates of spread.

A crew of individuals who may be assigned to support helicopter operations.

A fire that is intentionally ignited in an area or under circumstances where and when there should not be a fire.

A method to document a fire scene using right angle measurements off of a base line.

The personnel and equipment collectively assigned to the suppression of a specific fire or group of fires.

A circular holding pattern of an aircraft around a fixed location often related to a wildland fire. For example, the circular pattern of an airtanker in the vicinity of a wildland fire, waiting to make a retardant drop.

A firefighter who determines the location of a fire line.