Military occupational specialty codes for enlisted personnel in the U.S. Army include air traffic controller, cargo specialist, ground surveillance systems operator, multiple launch rocket system repairer and satellite/microwave systems chief. Occupational specialties or Army jobs cover a wide range of positions, including animal care specialist, bassoon player, diver and chaplain.
Within the occupational specialty of air traffic controller operator there are four skill levels with increasingly broad responsibilities. This MOS has a very heavy physical demands rating and qualifications and prerequisites include normal color vision, ability to clearly enunciate English using a two-way radio, and no prior alcohol or drug abuse diagnoses. The satellite/microwave systems chief MOS requires a security level denoted as SECRET and formal training through the Army Signal School. The bassoon player occupational specialty is part of the Army's Adjutant General's Corps and offers progression through five skill levels. There are approximately 190 occupational specialties available to qualified Army enlisted personnel.
To identify an enlistee's qualifications and match them with the appropriate MOS, the Army converts each enlistee's score on the Armed Forces Vocational Aptitude Battery, a test required prior to enlistment, to ten composite scores. These composite areas are clerical, combat, electronics, field artillery, general maintenance, general technical, mechanical maintenance, operators and food, surveillance and communications and skilled technical.