What is a key concept that ensures all personnel report to only one ICS supervisor?

The key concept that ensures all personnel report to only one ICS supervisor is known as unity of command. This principle is a fundamental element of the Incident Command System (ICS), as it establishes a clear reporting structure. Each individual in the organization, regardless of their role or function, is assigned to a single supervisor, which aids in maintaining the order and effectiveness of operations. By adhering to this principle, the potential for confusion and conflict is minimized, thereby allowing for more efficient incident management and communication among team members.

In the context of incident management, applying unity of command helps clarify roles and responsibilities, ensuring that tasks are coordinated appropriately and that all personnel receive consistent directives. This structure is crucial during emergency responses, as it streamlines decision-making processes and enhances operational efficiency.