Rotate teams on a regular basis. During heavy work periods some teams need to rotate every _____ to ______ minutes.

• A. 15 to 30 minutes
• B. 5 to 10 minutes
• C. 60 to 90 minutes
• D. 120 to 180 minutes

Answer: (A)

Managing fatigue and preserving performance during heavy work is essential in collapse operations. Rotating teams on a regular basis prevents cumulative fatigue, keeps decision-making sharp, and reduces exposure to hazards such as heat stress, loss of situational awareness, and decreased tool control. When the work is physically demanding and PPE or SCBA use is required, a shorter rotation window helps maintain safety and effectiveness. A 15–30 minute window gives the active team a workable period to accomplish tasks while the resting team can hydrate, recheck safety conditions, swap air cylinders if needed, and brief on any new findings.

Rotating much sooner, like every 5–10 minutes, tends to interrupt productive progress and inflates turnover without giving teams time to accomplish meaningful work. Waiting 60–90 minutes or 120–180 minutes allows fatigue to accumulate, reducing performance and increasing the risk of mistakes or unsafe conditions.