When is it appropriate to use the term 'All clear' on the radio?

When is it appropriate to use the term 'All clear' on the radio?

• A. After the immediate hazard is resolved and the area is deemed safe.
• B. Before entering the hazard.
• C. At shift changes.
• D. When leaving the scene.

Answer: (A)

All clear is used to confirm that the scene is safe once the immediate hazard has been mitigated and the area has been verified as safe. This is declared after the situation has been controlled, the primary threats are neutralized, and a check (with accountability) confirms no remaining life-threatening risks. It signals to other units that it’s safe to proceed with the next steps or to reallocate resources. Declaring all clear before entering the hazard would be premature and unsafe; using it at shift changes doesn’t convey anything about the scene’s safety; and saying it when leaving the scene doesn’t reflect the actual status of the hazard. So, the correct moment is after the immediate hazard is resolved and the area is deemed safe.

All clear is used to confirm that the scene is safe once the immediate hazard has been mitigated and the area has been verified as safe. This is declared after the situation has been controlled, the primary threats are neutralized, and a check (with accountability) confirms no remaining life-threatening risks. It signals to other units that it’s safe to proceed with the next steps or to reallocate resources. Declaring all clear before entering the hazard would be premature and unsafe; using it at shift changes doesn’t convey anything about the scene’s safety; and saying it when leaving the scene doesn’t reflect the actual status of the hazard. So, the correct moment is after the immediate hazard is resolved and the area is deemed safe.