In burn operations, what does containment mean?

• A. The moment ignition begins.
• B. The point at which the fire is contained or extinguished and no longer spreading.
• C. The time the burn ends due to daylight.
• D. The planned date for completing the burn.

Answer: (B)

Containment in burn operations means the fire is controlled within the planned boundaries and is no longer spreading. It is reached when suppression actions and conditions keep the fire from crossing established containment lines or from advancing beyond the burn area, allowing crews to shift to mop-up and monitoring. This concept is about control and stopping spread, not about when ignition starts, daylight ending the burn, or the scheduled date for the burn.