Engine companies should not introduce hose streams from the exterior until what has been confirmed?

Engine companies should not introduce hose streams from the exterior until it is confirmed that all personnel are clear of the building. This is a crucial safety protocol in firefighting operations. By ensuring that all firefighters and civilians are safely outside the structure, the risk of injury or fatality from water streams, debris, or potential structural collapse is minimized.

In fire situations, the risk often increases when exterior hose streams are introduced because of the potential for dislodging weakened structural components or creating unintended hazards. Clearing all personnel allows for a safer operational environment, enabling a more effective firefighting response.

Additionally, confirming personnel safety is a key responsibility for incident command, ensuring that effective communication is maintained and that all teams are accounted for before aggressive firefighting tactics are deployed. This focus on safety supports the overall operational effectiveness and minimizes risk for all involved.