In which zone should the term MAY-DAY be reserved for firefighter emergencies?

The term MAYDAY is specifically reserved for firefighter emergencies and should be used in the Hot Zone. This zone is designated for active firefighting operations and is where the immediate danger is most prevalent. By designating the use of the term MAYDAY to this area, it ensures that all personnel are aware that a serious situation is unfolding that requires immediate assistance.

In contrast, the Cold Zone is the area away from the incident where support operations take place, the Warm Zone is a transitional area offering some protection but still poses certain risks, and the Red Zone typically refers to areas with heavy fire activity or hazardous materials that require specialized handling. Thus, using MAYDAY only in the Hot Zone, where firefighters are engaged directly with life-threatening conditions, underscores the urgency and seriousness of the situation.