What is the initial action that an incident commander takes prior to formulating an incident action plan (IAP)?

What is the initial action that an incident commander takes prior to formulating an incident action plan (IAP)?

• A. conduct a size-up of the scene
• B. issue an evacuation order
• C. request additional resources
• D. secure the perimeter

Answer: (A)

Begin with a scene size-up to quickly gather essential information about what happened, the hazards present, the conditions of the scene, any victims, building type and occupancy, wind and weather, exposure risks, and potential for escalation. This early, rapid assessment sets the priorities for the incident—life safety, incident stabilization, and property conservation—and provides the facts needed to shape the incident action plan. Without solid size-up, the IAP would be built on guesses, risking misallocation of resources or unsafe actions. The other actions—issuing an evacuation order, requesting additional resources, or securing the perimeter—are important and may occur, but they depend on the information gathered during size-up and are integrated into the IAP based on that assessment. In short, you perform the size-up first to understand the situation well enough to formulate an effective IAP.

Begin with a scene size-up to quickly gather essential information about what happened, the hazards present, the conditions of the scene, any victims, building type and occupancy, wind and weather, exposure risks, and potential for escalation. This early, rapid assessment sets the priorities for the incident—life safety, incident stabilization, and property conservation—and provides the facts needed to shape the incident action plan. Without solid size-up, the IAP would be built on guesses, risking misallocation of resources or unsafe actions.

The other actions—issuing an evacuation order, requesting additional resources, or securing the perimeter—are important and may occur, but they depend on the information gathered during size-up and are integrated into the IAP based on that assessment. In short, you perform the size-up first to understand the situation well enough to formulate an effective IAP.