Under which circumstances should the IAP be revised or updated?

• A. Only after the incident is closed
• B. When conditions change, objectives become unachievable, or new information dictates a new plan
• C. Never; the plan remains the same
• D. Only when the public requests it

Answer: (B)

Incidents are dynamic, so the Incident Action Plan must be updated as conditions on the ground change. If conditions shift—such as weather, fire behavior, hazards, or resource availability—or if objectives become unachievable, or if new information points to a different approach, revising the IAP keeps tactics, assignments, and safety measures aligned with reality. This keeps coordination clear, resources properly managed, and operations safe and effective.

Other options miss this dynamic requirement: updating only after the incident is closed means missing crucial course corrections; never updating leaves the plan out of date; updates driven only by public requests don’t reflect operational needs and safety priorities.