When does controlling the utilities usually occur during a working structure fire?

Controlling the utilities is one of the first tasks to be accomplished during a working structure fire because it helps to ensure the safety of both firefighters and occupants. Mains such as gas, water, or electricity can pose significant hazards if not properly managed. For instance, uncontrolled gas can lead to explosions, while live electrical wires can create serious electrocution risks.

By securing utilities early in the response, firefighters can minimize these dangers, making it safer to conduct suppression efforts and enter the structure. This proactive measure is a vital part of fireground operations, allowing teams to focus on controlling and extinguishing the fire without the added risk of utility-related hazards.

In contrast, waiting until later stages, such as during overhaul or midway through suppression, would increase the risk of injuries and complicate the firefighting efforts. Thus, controlling the utilities early on is essential for maintaining safety and effectiveness during the incident response.