Direction given by the operations section chief which includes the tactics appropriate for the selected strategy, the selection and assignment of resources, tactics implementation, and performance monitoring for each operational period.

A natural or constructed barrier used to stop or check fires that may occur, or to provide a control line from which to work.

A small ditch often constructed below a fire on sloping ground (undercut or underslung line) to catch rolling material.

Lightweight portable pump developed for transport by helicopter.

A supply of fire tools and equipment assembled in planned quantities or standard units at a strategic point for exclusive use in wildland operations.

Two or more distinct incidents in the same general area that, by management action, are managed under a single incident commander or unified command in order to improve efficiency and simplify incident management processes.

A system that uses a set of mathematical equations to predict certain aspects of fire behavior in wildland fuels when provided with data on fuel and environmental conditions.

Courses defined as containing supplemental knowledge and skills not required for safe and tactical operations success on a wildfire.

Any item which can produce sufficient heat over a sufficient duration of time capable of bringing forest fuels to their ignition temperature and sustain open flame combustion.

A line connecting points of equal temperature on a weather map.