What describes the cold zone in hazardous materials scene control?

• A. The area immediately surrounding the hazard.
• B. The area that surrounds the warm zone and is used for logistical support functions.
• C. The inner zone for assistance to victims.
• D. The zone near the incident for triage.

Answer: (B)

In hazardous materials scene control, operations are split into zones to keep people safe and containment effective. The cold zone is the clean, outer area that surrounds the warm zone and is kept free of contamination. It serves as the base for logistics and incident management—housing the incident command post, staging areas, communications, and supply handling. It also supports medical care and patient processing after decontamination, but its primary role is administrative and logistical rather than dealing with the hazard itself.

This is why the best description is the area surrounding the warm zone used for logistical support functions. The area immediately around the hazard is the hot zone, not the cold zone. The inner area for assisting victims corresponds to the warm zone where decontamination and initial care occur, not the cold zone. A zone described as near the incident for triage would be closer to the hazard zones than the designated clean, logistical space of the cold zone.