What type of incident involves activated Command and General Staff and requires a written IAP?

In the Incident Command System (ICS), a Type 3 incident is characterized by a manageable but significant level of complexity that requires the activation of the Command and General Staff roles. This includes positions such as Incident Commander, Operations Section Chief, Planning Section Chief, and others who are crucial for coordinating the response effectively.

Type 3 incidents typically necessitate a written Incident Action Plan (IAP) to ensure that all aspects of the response are documented and that resources are effectively managed. The IAP outlines objectives, strategies, tactics, and resource assignments necessary to achieve those objectives, which is essential for maintaining operational clarity and safety.

While other types of incidents also have specific criteria, only Type 3 incidents have the definitive requirement for both an activated Command and General Staff and a formal written IAP. This level of organization helps to address the complexities and demands of the incident, ensuring that all responders are on the same page and working towards common goals.