Colonel Stephen P. Passero was commissioned a Quartermaster Officer upon graduation from Officer Candidate School Class 3-75, 20 May 1975. | His subsequent duty assignments include: S-3 Training Officer, 240th Quartermaster Battalion, Fort Lee, Virginia; Aide-de-camp, Commander, Troop Support Agency, Fort Lee, Virginia; Battalion Executive Officer, 2nd Basic Training Brigade, Fort Jackson, South Carolina; Commander, B Company, 8th Battalion, 2nd Basic Training Brigade, Fort Jackson, South Carolina; Brigade S-4 2nd Basic Training Brigade, Fort Jackson, South Carolina; Petroleum Officer, 3rd Armored Division, Frankfurt, Germany; Petroleum Officer, V Corps, Frankfurt, Germany; Battalion S-3 548th Supply and Service Battalion, Fort Drum, New York; Battalion Executive Officer, 548th Supply and Service Battalion, Fort Drum, New York; Petroleum Officer, U.S. Army Pacific, Fort Shafter, Hawaii; Executive Officer, 24th Corps Support Group, Fort Stewart, Georgia; Commander, 260th Quartermaster Battalion, Hunter Army Airfield, Georgia; Joint Petroleum Officer, United States European Command, Stuggart, Germany; Chief, Joint Logistics Operations Center, United States European Command, Stuggart, Germany; Student, Air War College, Maxwell Air Force Base, Alabama; Commander, Defense Energy Support Center Europe, Wiesbaden, Germany; Deputy Director of Operations, Defense Energy Support Center, Fort Belvoir, Virginia. | Colonel Passero has attended the Branch Immaterial Officer Course, Quartermaster Officer Basic Course, Auto Data Processing Course, Quartermaster Officer Advanced Course, Army Depot Operations Management Course, Logistics Management Development Course, Direction of Industrial Operation Course, Command Arms Staff Course, Command General Staff College, and the Air War College. | His awards and decorations include: the Defense Superior Service Medal, Defense Meritorious Service Medal, Meritorious Service Medal (5 Oak Leaf Cluster), Joint Service Achievement Medal, Army Achievement Medal. | Following his retirement he served Program Manager at the Wexford Group International, Arlington, Virginia.