| Abbreviation | Description | Category |
| AAUSN | Administrative Activity Under Secretary of the Navy | Navy |
| ABC | Activity based costing | Competitive Sourcing |
| ACC | Air Combat Command | Air Force |
| ACOE | Acquisition Center of Excellence | Navy |
| ACSIM | Assistant Chief of Staff for Installation Management | Army Specific |
| AETC | Air Education and Training Command | Air Force |
| AF FAC | Air Force Functional Account Code | Air Force |
| AF FAR | Air Force Federal Acquisition Regulation | Air Force |
| AFARS | Army Federal Acquisition Regulation Supplement | Army Specific |
| AFB | Air Force base | Air Force |
| AFCESA | Air Force Civil Engineer Support Agency | Air Force |
| AFDD | Air Force Data Dictionary | Air Force |
| AFGE | American Federation of Government Employees | Competitive Sourcing |
| AFI | Air Force Instruction | Air Force |
| AFMAN | Air Force Manual | Air Force |
| AFMC | Air Force Materiel Command | Air Force |
| AFPD | Air Force Policy Directive | Air Force |
| AFR | Air Force Regulation | Air Force |
| AFRC | Air Force Reserve Command | Air Force |
| AFSC | Air Force Specialty Code | Air Force |
| AFSOC | Air Force Special Operations Command | Air Force |
| AFSPC | Air Force Space Command | Air Force |
| ALP | Acceptable level of performance | Competitive Sourcing |
| AMC | Air Mobility Command | Air Force |
| AMC | Army Materiel Command | Army Specific |
| AMEC | Army Management Engineering College | Army Specific |
| AMEDD | Army Medical Department | Army Specific |
| AQL | Acceptable quality level | Competitive Sourcing |
| AR | Army Regulation | Army Specific |
| ASA (FM&C) | Assistant Secretary of the Army (Financial Management & Comptroller) | Army Specific |
| ASA (I&E) | Assistant Secretary of the Army (Installations & Environment) | Army Specific |
| ASA (M&RA) | Assistant Secretary of the Army (Manpower & Reserve Affairs) | Army Specific |
| ASA (RD&A) | Assistant Secretary of the Army (Research, Development & Acquisition) | Army Specific |
| ATO | Agency Tender Official | Competitive Sourcing |