When must ranking fire chief officers notify the Command Van of their arrival?

Ranking fire chief officers must notify the Command Van of their arrival upon reaching the scene as it is a crucial part of the incident command system. This communication ensures that the command structure is maintained and that all parties are aware of the current leadership on the ground. By notifying the Command Van immediately, officers facilitate effective coordination and resource allocation among different units operating at the incident. This prompt communication is essential for overall situational awareness and helps in the management of the incident, allowing for timely updates and strategic decision-making.

The other options suggest actions that would delay this important notification, thereby potentially compromising the efficiency and safety of operations at the scene. By establishing a clear protocol for when to make this notification, the department ensures that command officers can efficiently integrate into the incident operations right from their arrival.