What should the second arriving Chief Officer do upon arrival?

Upon arrival, the second arriving Chief Officer typically reports to the Command Post for assignment, which is crucial for maintaining an organized and efficient incident response. This action ensures that the Chief Officer can quickly receive information regarding the current situation, the established command structure, and any specific tasks or responsibilities that need to be addressed.

In multi-agency or larger incidents, clear communication and coordination are essential to avoid confusion and ensure that all personnel are effectively utilized. By reporting to the Command Post, the second arriving Chief can integrate into the existing command structure, understand the incident's dynamics, and contribute to resource management and strategic planning.

The other options, while they may seem plausible in certain contexts, do not align with the typical protocol for a second arriving officer. Assuming command could lead to conflict in leadership if another officer is already in charge, and leveling or staging could be relevant for additional units but is not the priority for the second Chief Officer. Conducting a safety assessment, while important, is generally a task that can be addressed as part of the ongoing overview provided at the Command Post.