What action should be taken when the primary search gives all clear?

When a primary search gives an "all clear," it indicates that there are no victims remaining in the area that was searched and that it is safe for firefighting operations to continue. Therefore, proceeding to an aggressive interior attack is the immediate next logical step. This action allows firefighters to focus on suppressing the fire and preventing it from spreading, which is crucial to protecting the structure and any nearby exposures.

The all clear status is significant because it provides assurance that the area is safe, allowing firefighters to actively engage with the fire without the added concern of searching for trapped occupants. This decision prioritizes the aggressive suppression tactics needed during a fire incident, thereby reducing potential damage and enhancing overall operational efficiency.

The other actions, while potentially valuable in different contexts, do not directly address the operational procedure that follows an all clear. Notifying command about the status, evacuating non-essential personnel, or assessing structural conditions may be important in the overall incident management, but they do not align with the immediate tactical response required after confirming that the area is clear of victims.