Retardant drop made from one compartment at a time from an airtanker with a multi-compartment tank.

Insignificant change in wind speed, direction, and temperature (less than 5 degrees) and relative humidity (less than five percent), respectively. When used as a general statement in a long-range forecast, all four criteria apply.

The apparatus and techniques used to mix concentrate with water to make solution, pump and mix air and solution to make foam, and transport and apply foam. (Systems defined here include compressed air foam and nozzle aspirated.)

All items for transport and delivery by aircraft.

A fire started by igniting the full perimeter of the intended burn area so that the ensuing fire fronts converge toward the center of the burn. Set around the outer perimeter of a resource to establish a protective black-line-buffer.

A written resume of an expert witness used to show that expert's sufficient special expertise in the field.

Derived from the incident position descriptions and are a component of NWCG standards. Position specific standards specify the tasks and behaviors that make up the incident position’s duties and responsibilities.

Any changing characteristic; in statistics, a measurable characteristic of an experimental unit.

Drawing water from static sources such as a lake, pond, cistern, river, etc. into a pump which is above the level of the water supply. This is done by removing the air from the pump and allowing atmospheric pressure [14.7 psi (101 kPa) at sea level] to push water through a noncollapsible suction hose into the pump. 

Permanent devices with fire engine threads attached to expedite drafting operations in locations where there are water sources suitable for use in fire suppression (e.g., piers, wharves, bridges over streams, highways adjacent to ponds).