On a TRI, who first establishes command upon arrival?

On a TRI, who first establishes command upon arrival?

• A. The First Arriving Company Officer
• B. The Incident Safety Officer
• C. The Chief Officer
• D. The Safety Officer

Answer: (A)

When a scene is reached, the first arriving company officer assumes command to create a single, coordinated approach to the incident. This officer does a quick size-up, establishes the command post, and announces command so all units know who is directing operations. From there, they set the initial priorities—life safety, incident stabilization, and property conservation—and begin assigning tasks and requesting needed resources. The Safety Officer and Incident Safety Officer are specialized roles focused on safety and are brought in under the established command, not the person who first takes control. The Chief Officer would be in charge only if they are the one on scene and assuming command; otherwise, the first arriving company officer is the effective incident commander to start the response.

When a scene is reached, the first arriving company officer assumes command to create a single, coordinated approach to the incident. This officer does a quick size-up, establishes the command post, and announces command so all units know who is directing operations. From there, they set the initial priorities—life safety, incident stabilization, and property conservation—and begin assigning tasks and requesting needed resources. The Safety Officer and Incident Safety Officer are specialized roles focused on safety and are brought in under the established command, not the person who first takes control. The Chief Officer would be in charge only if they are the one on scene and assuming command; otherwise, the first arriving company officer is the effective incident commander to start the response.