HAZMAT Operations WFD 45 Complete Practice Test 2026

In HazMat operations, the Cold Zone is the clean, uncontaminated area where incident command and support functions operate. The Command Post sits here so the incident commander and staff can coordinate, plan, and allocate resources safely without exposure to the hazard. The Medical Unit typically stays closer to the decontamination process (Warm Zone) to treat and decontaminate patients before they move farther away, and the Fire Suppression Team works near the hazard (Hot or Warm Zones) to control or suppress the threat. Public relations isn’t a primary tactical unit assigned to the Cold Zone. So the team located in the Cold Zone is the Command Post.