The Chemical Biological Incident Response Force (CBIRF) is a unit in the United States Marine Corps responsible for countering the effects of a chemical, biological, radiological, nuclear, or high-yield explosive (CBRNE) incident. They were activated in April 1996 by General Charles C. Krulak, then Commandant of the Marine Corps. The unit is based at Naval Support Facility Indian Head in Indian Head, Maryland and falls under the command of the II Marine Expeditionary Force.