 In June 2003, RDECOM assumed operational control of the RDE centers.An organizational ceremony took place in October 2003 at Aberdeen Proving Ground, where SBCCOM officially stood down and the 389th Army Band and the Army Material Command's Acquisition Center were assigned to RDECOM.RDECOM became a major subordinate command of the Army Material Command in March 2004, with over 17,000 military, civilian, and contractor personnel at the time.