What principle of fire department organization ensures that each firefighter reports to only one supervisor?

The principle that ensures each firefighter reports to only one supervisor is known as unity of command. This principle is crucial in any organizational structure, particularly in fire departments, where clear lines of authority are essential for effective operations. Unity of command helps prevent confusion and conflicting orders, as each member knows who their direct supervisor is and to whom they should report. This clear delineation of responsibility fosters accountability within the team, as firefighters understand the expectations and directives coming from their immediate supervisors. In a high-pressure environment like firefighting, where coordination and communication are vital, unity of command helps streamline decision-making and enhances operational efficiency. This principle, therefore, is foundational to maintaining order and ensuring that all personnel are aligned toward common goals.