In defensive fires, what is regarded as a reasonable maximum span of control?

In defensive fires, a span of control refers to the optimal number of individuals or units that a supervisor can effectively manage during an incident. While the standard recommended span of control typically ranges from three to seven units per supervisor, the choice of seven companies is widely accepted in fire service management as a maximum limit.

This number is practical because it allows for adequate oversight and communication among units while ensuring that the supervisor can effectively make decisions and provide guidance as needed. Operating at or below this maximum helps to mitigate the risk of losing situational awareness and ensures that each unit receives adequate attention and resources during a defensive operation.

Choosing a higher number, such as ten or twelve companies, may lead to confusion and diminished effectiveness, as the supervisor may struggle to monitor activities and maintain clear communication. Thus, seven companies is considered a reasonable and strategic choice for maintaining effective command and control in defensive fire operations.