What is the purpose of marking a contaminated area?

• A. To designate a safe perimeter
• B. To warn forces of contamination threats/hazards
• C. To identify civilian assets
• D. To track movement speed

Answer: (B)

Marking a contaminated area is all about communicating hazard information to anyone who might enter the space. By clearly marking the zone, responders and others know where the danger exists, what level of protection is required, and where decontamination and control measures should be set up. This kind of warning helps prevent exposure, guides safe operations, and supports proper incident management.

While establishing a perimeter can be part of the response, the primary purpose of the marks is to warn and restrict access based on the contamination, not to identify assets or track how fast people move.