What is critical to communicate to all incoming apparatus during an operation?

Communicating the established attack mode to all incoming apparatus during an operation is vital because it ensures that all units are on the same page regarding the strategy being implemented to combat the fire. The attack mode outlines the approach—such as offensive, defensive, or transitional—that will be used based on the current conditions of the incident. This information aids in coordinating efforts among the various teams and helps prevent confusion or duplication of efforts, which can lead to unsafe situations and inefficiencies.

While understanding weather conditions, the number of victims, and the structure type are indeed important factors in a firefighting operation, they are secondary to the immediate tactical approach being taken. Knowing the attack mode allows incoming units to adapt their response to best support the existing operation, positioning themselves in a way that complements the overall strategy and maximizing safety and effectiveness.