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Fire Terminology: What does Containment Actually Mean & More...

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When wildfires occur, a lot of terminology is thrown around. Here are some of the more commonly heard words defined by the Glossary of Wildland Fire Terminology from the National Wildfire Coordinating Group, a conglomerate of federal agencies.

Contained
1. The status of a wildfire suppression action signifying that a control line has been completed around the fire, and any associated spot fires, which can reasonably be expected to stop the fire’s spread.

Containment
1. The status of a wildfire suppression action signifying that a control line has been completed around the fire, and any associated spot fires, which can reasonably be expected to stop the fire’s spread.
2. The act of controlling hazardous spilled or leaking materials.

Control Line
1. An inclusive term for all constructed or natural barriers and treated fire edges used to control a fire.