What is the term for the areas that are classified as hot, warm, or cold at an incident site?

The term that describes areas classified as hot, warm, or cold at an incident site is control zones. Control zones are essential in incident management because they delineate areas based on the level of threat and safety for responders and civilians.

The hot zone is the area immediately surrounding the incident where the presence of hazards poses a significant risk, requiring strict access control and the use of personal protective equipment (PPE). The warm zone serves as a buffer area where decontamination occurs and where personnel can safely prepare for entry or exit between the hot zone and cold zone. The cold zone is the safe area where no significant hazards are present, and personnel can regroup, plan, and support incident operations.

This classification helps ensure that appropriate safety measures are implemented and that responders can operate efficiently and safely at the incident site.