Characteristics of a Type 1 Incident are as follows:

• Resources: National resources are required to safely and effectively manage the operations. All Command and General Staff positions are activated, and Branches need to be established. Operations personnel often exceed 500 per operational period and total personnel will usually exceed 1,000. There is a high impact on the local jurisdiction, requiring additional staff for office administrative and support functions. The incident may result in a disaster declaration.
• Time Span: The incident is expected to go into multiple operational periods. A written Incident Action Plan is required for each operational period.