CBRN Safety 102
CBRN Safety 102 : Chapter II - Domestic CBRN CM (5) Unique Planning Considerations in the Domestic Operational Environment: (E) Control Zones: In CBRN response, control zones are established to ensure the safety of all responders and control access into and out of a contaminated area. The three zones established at a chemical, radiological, nuclear, and some biological incident sites (where there is a contaminated area such as may be the case with anthrax) are often referred to as the hot zone, the warm zone, and the cold zone. In nearly all cases, the control zones will decrease in size with time as CBRN hazards naturally decrease. Once the characteristics of the hazard are understood, the control zones can be effectively altered to allow more mission flexibility
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