What does the term "overhaul" refer to in firefighting?

The term "overhaul" in firefighting specifically refers to the process of checking for hidden fire and ensuring that the area is safe after the primary fire has been extinguished. This phase is crucial because some fires can reignite if not thoroughly searched and checked for hot spots. During overhaul, firefighters remove debris and fire materials, often using tools to access hard-to-reach areas where embers might remain. This proactive approach helps to prevent secondary fires and ensures that the integrity of the structure is secured, aiding in the overall safety of the scene.

The other options do not align with the definition of overhaul. The initial attack on the fire is focused on extinguishing the flames actively, while securing equipment post-incident pertains to maintenance and accountability after the emergency is managed. The preparation of firefighting strategies involves planning before or during an incident to efficiently combat fires and does not relate to the aftermath of fire suppression efforts.