United States Army CBRN School The United States Army CBRN School , located at Fort Leonard Wood , Missouri is the primary American training school specializing in military Chemical , Biological , Radiological , and Nuclear ( CBRN ) defense . Until 2008 , it was known as the United States Army Chemical School . Training Facilities . In accordance with U . S . Federal Law , Fort Leonard Wood , Missouri is designated the central location for all of the Department of Defense ' s CBRN Operations Training and home to the Chemical Corps Regiment . It was moved from Fort McClellan Alabama after the base was closed by the Defense Base Closure and Realignment Commission ( BRAC ) in 1999 . The Army CBRN School provides numerous courses for officers , Non - commissioned Officers and Initial Entry Soldiers , ranging from highly technical to the more general in nature . Numerous international officers also send students to train at the CBRN School . Additionally , the US Air Force , US Navy , US Coast Guard and US Marine Corps all also maintain training elements at Fort Leonard Wood who , in partnerships with the Army CBRN School , train their personnel in CBRN operations . Fort Leonard Wood and the Army CBRN School have world - class facilities in which to conduct training . Perhaps the most famous is the Chemical Defense Training Facility ( or CDTF ) where military students from across the globe train and become familiar with actual nerve agents in realistic scenarios , and also conduct training with radiological isotopes and inert biological agents . The Edwin R . Bradley Radiological Teaching Laboratories is one of the very few radiological teaching laboratories licensed by the NRC in the Department of Defense . It provides a variety of training in radiological and nuclear defense under the supervision of credentialed scientists . The newest facility at the CBRN School is the Lieutenant Joseph Terry CBRN Training Facility . Opened in November 2007 , The 1LT Joseph Terry Chemical , Biological , Radiological , Nuclear ( CBRN ) Responder Training Facility occupies approximately and provides a state - of - the - art CBRN Responder Training Campus for Inter - Service and other Agencies as requested . The US Army CBRN School is the lead for all DoD CBRN Response Training . This facility provides unmatched training opportunities in the fields of CBRN Consequence Management , Hazardous Materials Incident Response , Realistic training venues and other CBRN Response arenas as required . The CBRN School also provides training in Sensitive Site Assessment and Exploitation . In addition to training , the CBRN School also develops doctrine for Operations , researches and develops materiel requirements , and conducts joint service experimentation as the Joint Combat Developer for the Department of Defense ' s Chemical and Biological Defense Program . Official name change . On 11 January 2008 , The U . S . Army Chemical School was renamed as The U . S . Army Chemical , Biological , Radiological and Nuclear School ( USACBRNS ) . The name change was to encompass , in the title of the school , the wide range of training and expertise maintained by the U . S . Army Chemical Corps . Command . The Commandant of the U . S . Army CBRN School is Brigadier General Peggy C . Combs . The regimental Command Sergeant Major is CSM Gabriel Arnold .