Which step in the Planning "P" Model involves determining the situation on the ground?

The step in the Planning "P" Model that involves determining the situation on the ground is the size-up. Size-up is a critical initial assessment process that allows company officers to gather and analyze key information about the incident scene, including its characteristics, the resources available, and the immediate threats or hazards present. This foundational evaluation sets the stage for the entire planning process, helping to inform the subsequent steps such as establishing objectives and strategies, making assignments, and evaluating the overall plan.

Understanding the situation accurately through size-up enables officers to develop appropriate strategies tailored to the specifics of the incident. It also supports the safety of personnel by providing insight into potential risks that need to be mitigated. Thus, successful size-up is essential for effective incident management and operational success.