According to the USFA, self-rehab should be required after a firefighter has consumed how many 30-minute SCBA bottles?

• A. one
• B. two
• C. three
• D. It varies with weather conditions.

Answer: (B)

Managing air supply and rehab: When firefighters work in hot, physically demanding conditions, keeping track of air usage is a key safety measure. Self-rehab is the planned pause to rest, rehydrate, cool down, and assess readiness to continue. The USFA sets the threshold at two 30-minute SCBA bottles; reaching this level of air consumption indicates substantial exertion and increased risk of heat stress, fatigue, and impaired performance, so moving into rehab helps ensure safe decision-making about continuing work. Using only one bottle doesn’t meet that threshold, and three bottles would exceed it. Weather can affect how quickly air is used, but the rule remains the same to keep safety consistent.