Span of control is a management principle based on how many people a person can supervise and:

• A. Location of incident
• B. Complexity of the task
• C. Cost analysis
• D. Unexpected outcomes

Answer: (B)

Span of control is the number of people a supervisor can effectively direct. The deciding factor is how complex the tasks are. When tasks are simple and routine, fewer decisions and less coordination are needed, so a supervisor can oversee more people. With complex tasks, constant direction, close monitoring, and quick decisions are required to keep safety and operations on track, which means the supervisor should manage fewer subordinates. In firefighting, a crew performing straightforward hose-line work may allow a larger span, whereas a crew dealing with changing conditions, multiple hazards, and critical safety decisions requires tighter supervision. The location of the incident, the cost analysis, or unexpected outcomes can affect how work is carried out, but they don’t establish the fundamental limit on supervision. Therefore, the complexity of the task best explains span of control.