State the “two-in, two-out” rule in fire operations.

• A. Two inside must be inside before one or more can operate for search/rescue; two must be outside to remain outside and rescue.
• B. Two hoses must be used in every operation.
• C. Two fire trucks must attend.
• D. Two incidents can be handled by one crew.

Answer: (A)

Two firefighters must be inside the structure before interior search or rescue begins, and a separate pair must remain outside to act as a standby and ready-to-rescue team. This setup creates a built-in safety net: the interior team can perform their task while the outside team monitors conditions, provides support, and can promptly withdraw or rescue if conditions deteriorate. It’s all about ensuring accountability and rapid rescue capability in hazardous environments.

Other options focus on equipment or external requirements (like hoses, trucks, or number of incidents) rather than the safety framework for interior operations under search and rescue conditions.