Chapter 1: Declarations and Planning
Incident Period
Stafford Act Section 401; 44 CFR 206.36

Article 33: Incident Period

(Category: disaster-determinations)

Article Summary

The Incident Period is the specific span of time during which the disaster-causing event occurs. The length of this window is dynamic and depends entirely on the physical nature of the incident; for example, a tornado incident period may be restricted to a single day, whereas a major flood event may remain open for several weeks as rivers crest, remain high, and slowly recede.

FEMA strictly dictates that only physical damage that occurs during the designated incident period—or structural damage that is the direct, un-severed result of events occurring within that window—is legally eligible for public assistance grant funding. However, a narrow regulatory exception is made for Emergency Protective Measures (Category B) and specific preparation activities. These protective measures may be deemed eligible for reimbursement if they were performed within a reasonable, necessary, and fully justified timeframe in advance of the official incident period starting. The definitive start and end dates are codified by FEMA within the formal FEMA-State Agreement.

Five Key Takeaways for CTA FEMA Compliance

  1. Verify Asset Damage Maps to the Incident Window: Cross-reference the exact date and time of your asset failures against the official disaster window, as any damage occurring outside these bounds will be denied.
  2. Justify Pre-Event Emergency Preparation Timelines: Meticulously document the necessity and timing of any pre-disaster Category B activities (such as purchasing sandbags or staging emergency generators) to prove they were executed within a reasonable timeframe prior to impact.
  3. Monitor River and Flood Inundation Crests: For prolonged events like flooding, maintain local weather and geological data to prove that progressive structural failures occurred while the incident period remained active.
  4. Review the Legally Binding FEMA-State Agreement: Consult the official FEMA-State Agreement for your specific disaster declaration to confirm the exact, legally recognized closure date of the incident period.
  5. Exclude Subsequent Weather Damage from Claims: Ensure that any secondary damage caused by a separate, non-declared storm following the close of the incident period is completely excluded from your active project worksheets.