Public Law 108-234, dated 28 May 2004 and Executive Order 13363, dated 29 November 2004, established the medal. The Office of the Under Secretary of Defense announced the establishment of campaign phases on 19 February 2008.
In order of precedence, the ACM will be worn before the Iraq Campaign Medal (ICM) and shall directly follow the Kosovo Campaign Medal (KCM) (i.e., KCM, ACM, ICM, GWOTEM, etc.).
Order of precedence and wear policy for service medals awarded to Army personnel is contained in Army Regulation (AR) 670-1. Policy for awards, approving authority and supply of medals is contained in AR 600-8-22. The policy for display of campaign streamers on guidons/flags and supply of streamers is contained in Chapter 9, AR 840-10.