The 82nd Chemical Battalion was a United States Army Chemical training battalion for enlisted soldiers entering into the MOS 54B and officers in MOS 74A that was stationed at Fort McClellan, Alabama between 1986 and 1999. At which time, Fort McClellan was closed and the unit transferred to Fort Leonard Wood, Missouri. The battalion was deactivated in September 2007 and the 84th Chemical Battalion took over its duties. The battalion served in World War II.