The planned number of years between prescribed fires on a specified area.

Any non-structure fire that occurs in vegetation or natural fuels. Includes wildfires and prescribed fires.

A wildland fire originating from a planned ignition in accordance with applicable laws, policies, and regulations to meet specific objectives.​

The name of an interagency operations center that provides coordination, mobilization, and demobilization of emergency management resources within a specific geographic coordinating area.

A system created to rank create, read, update, delete actions on business applications to ensure a system can only take those actions when they are considered an authoritative data source, which varies based on the state of the incident.

Slowest spreading portion of a fire edge.

Fingers or islands of less intensely burned areas or areas where the fire has self extinguished.

For any particular fire which is neither contained nor controlled, any 24-hour period following the termination of the first burning period.

An employee is on duty, and time spent on standby duty is hours of work if, for work-related reasons, the employee is restricted by official order to a designated post of duty and is assigned to be in a state of readiness to perform work with limitations on the employee’s activities so substantial the employee cannot use the time effectively for his or her own purposes.

The heat of combustion corrected for various heat losses, mainly the presence of moisture in the fuel. To a very close approximation, the quantity of heat per pound of fuel burned that passes through a cross section of the convection column above a fire that is burning in a neutrally stable atmosphere.