IRR Muster
Senior Master Sgt. Janet Riley (right) assists Renee Mariscal as she and other members of the Individual Ready Reserve update their civilian employment information during a muster exercise held at the Air Reserve Personnel Center in Denver July 20, 2006. IRRs are Air Force members who have served on active duty but still have a military service obligation to the Air Force. Annually, ARPC orders IRRs to report to an Air Force base, usually within 150 miles of their residence. Upon arrival, their records are updated, and they receive a basic medical screening and several briefings. This is a routine process to allow ARPC to look at the activation process, not to initiate activation. (U.S. Air Force Photo/Cheresa D. Theiral)