CBRN defense

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Chemical, biological, radiological and nuclear defense (CBRN defense) or NBC protection is protective measures taken in situations in which chemical, biological, radiological or nuclear (including terrorism) hazards may be present. CBRN defense consists of CBRN passive protection, contamination avoidance, and weapons of mass destruction mitigation.

A CBRN incident differs from a hazardous material incident in both scope (i.e., CBRN can be a mass casualty situation) and intent. CBRN incidents are responded to under the assumption that they are intentional and malicious; evidence preservation and perpetrator apprehension are of greater concern than with Hazmat team incidents.

A 2011 forecast concluded that worldwide government spending on CBRN defense products and services would reach US$8.38 billion that year.^[1]