What is the first priority for initial incident command after establishing the first three functions of command?

The first priority for initial incident command after establishing the first three functions of command is scene safety. Ensuring the safety of the incident scene is paramount because it protects not only the responders who are operating at the scene but also the civilians in the vicinity. Scene safety involves assessing potential hazards such as fire, smoke, structural instability, and any hazardous materials present.

By prioritizing scene safety, the incident commander can effectively manage risks and create a safe environment for all personnel involved, which subsequently allows for effective execution of other priorities, like incident stabilization and resource allocation. After establishing a safe scene, the command can then focus on controlling the incident and deploying resources efficiently, making scene safety the foundation for successful incident management.