An ignition device suspended under a helicopter, capable of dispensing ignited fuel to the ground for assistance in burning out or backfiring.

NWCG standards establish common practices that enable efficient and coordinated national interagency wildland fire operations. These standards may be comprised of requirements, guidelines, procedures, processes, best practices, specifications, techniques, and methods. NWCG standards are interagency by design; however, the decision to adopt and utilize them is made independently by the individual member agencies and communicated through their respective directives systems.

For ground observation purposes, a change of at least 45 degrees in the direction of a significant wind, which occurs in a relatively short time frame.

Acceptance of information as true without proof or demonstration.

Reduction of fire hazard in rough, usually by prescribed burning.

Combustion of a thermally isolated material initiated by an internal chemical or biological reaction producing enough heat to cause ignition.

Rapid combustion and/or explosion of unburned gases trapped at some distance from the main fire front. Usually occurs only in poorly ventilated topography.

A number used to indicate relative (not actual) rate of spread.

A planned, systematic procedure for collecting, recording, and evaluating prefire and fire management intelligence data for a given planning unit or preattack block. The planning phase is usually followed by a construction and development program integrated with other resources and activities. 

A course developed by an interagency, all-hazard subject matter expert group containing the same learning objectives and content as an NWCG developed course. Interchangeable course do not require equivalency determination by a using agency and may have multiple course codes and/or numbers. These courses will be incorporated into IQCS/IQS and credit will be given for the NWCG course.