Overhaul can only begin when a certain benchmark has been reached. What is this benchmark?

Overhaul is a critical phase in firefighting that involves the systematic checking for hidden fires and ensuring that no residual combustion remains in the building. The benchmark that establishes when overhaul can commence is when the fire is considered under control. This indicates that the immediate danger has been addressed and the fire threat to unburned areas has been sufficiently mitigated, allowing firefighters to safely focus on extinguishing any lingering hot spots and clearing the area of hazards.

Prior to this point, safety is paramount. For instance, conducting a primary search before the fire is under control could expose personnel to unnecessary risks, as the fire might reignite or spread unexpectedly. Similarly, while stopping loss is a crucial aspect of fire management, it typically refers to limiting the damage caused by the fire rather than signifying that the fire is actually out or under control. While suppression efforts need to have started, they must progress to the point where the fire is no longer an imminent threat before overhaul can begin.

Therefore, the correct answer highlights the importance of fire control as the key condition that must be met before safely transitioning to overhaul activities.