Final answer:
The designated areas at a HazMat incident are called Hot Zone, Warm Zone, or Cold Zone, each with a different level of hazard and required protective measures.
Step-by-step explanation:
The designation of an area at a Hazardous Materials (HazMat) incident, based on safety and the degree of the hazard, is called a Hot Zone, Warm Zone, or Cold Zone. These zones are part of the Hazardous Waste Operations and Emergency Response (HAZWOPER) standard, which is designed to protect workers and first responders in areas where there may be exposure to hazardous substances. The Hot Zone is the area with the highest level of contamination and requires the most protective gear, the Warm Zone is where decontamination occurs, and the Cold Zone is the command and support area with no contamination.