What is the name of the area between the hot and cold zones that usually contains the decontamination corridor at hazardous materials incidents?

• A. Hot Zone
• B. Warm Zone
• C. Cold Zone
• D. Traffic Control Zone

Answer: (B)

The area between the hot zone and the cold zone is the warm zone. This zone acts as the transition buffer where decontamination takes place, including the decontamination corridor. It’s the space where responders safely remove contaminated PPE, perform initial decon, and control entry and exit to prevent contaminants from moving into the clean cold zone. The hot zone is where the hazard is present, and the cold zone is kept clean and secure. The other option isn’t used as a standard HazMat zone designation, so it doesn’t fit the purpose of housing the decon corridor.