In HazMat operations, which zone is designated for decontamination and PPE doffing?

• A. Cold zone.
• B. Warm zone.
• C. Hot zone.
• D. Safe zone.

Answer: (D)

In HazMat operations, the area used for decontamination and removing PPE is the zone that sits between the contaminated hot zone and the clean cold zone. This is the warm zone. Its purpose is to provide a controlled space where responders and equipment can be decontaminated and PPE doffed safely, with measures in place to prevent any lingering contaminants from spreading to clean areas. After decon, people and gear transition into the cold zone, where conditions are clean and PPE can be fully removed without risk. While some programs might refer to a safe or non-contaminated area in different terms, the function that supports decontamination and PPE doffing is best described as the warm zone.