Which type of incident requires a written Incident Action Plan?

A written Incident Action Plan (IAP) is essential for Type 1 incidents, which are characterized by their complexity and the need for a structured management approach. Type 1 incidents often involve large-scale emergencies that may require extensive resources, coordination among multiple agencies, and a longer operational period. An IAP provides a clear framework for communication, resource allocation, and operational strategy, ensuring that all involved parties are aligned and aware of their roles and responsibilities.

This level of incident typically demands a high level of situational awareness and planning due to the potential for significant impacts on safety, property, and the environment. The written IAP serves as a critical tool to manage the complexities of such incidents effectively, capturing key information about objectives, tactics, and overall strategy in one accessible document.

While other incident types may require some form of planning, the necessity for a formal, written IAP is particularly pronounced in Type 1 incidents due to their scale and complexity. This focus on planning and communication enhances operational efficiency and helps ensure that all responders are informed and coordinated in their efforts.