What is essential before entering a collapsed building?

Identifying and controlling hazards is crucial before entering a collapsed building due to the potentially dangerous environment that may exist. Collapsed structures can harbor various risks, such as unstable debris, gas leaks, electrical hazards, and sharp objects. Before any rescue operations begin, it is essential to assess the scene to identify these dangers and take necessary precautions to mitigate them.

By controlling hazards, rescuers can create a safer environment for both themselves and any victims they may be attempting to rescue. Effective hazard control may include securing the area, shoring up unstable structures, and using appropriate personal protective equipment. This foundational step is critical to ensuring both the safety and effectiveness of the operation, which can ultimately save lives.