In initial size-up, when conditions change, the incident commander should:

• A. Increase aggressiveness and push interior attack
• B. Revise plans as conditions change
• C. Stand fast and wait for orders
• D. Call for mutual aid only after ten minutes

Answer: (B)

When conditions change, the incident commander must revise the plan to reflect the new reality. The incident action plan is a living document, and updating it ensures that objectives, tactics, and resource assignments match the current risk and information on the ground. This keeps operations coordinated, safe, and effective as the scene evolves.

Pushing interior attack aggressively without new information can jeopardize crews; standing fast and waiting for orders can waste critical time; and calling for mutual aid after a fixed delay isn’t responsive to what the incident actually needs. Revisions keep everyone aligned with the latest situation and priorities.