| Abbreviation | Definition |
|---|---|
| ATTRA | Appropriate Technology Transfer for Rural Areas |
| ATUS | American Time Use Survey |
| ATV | Air Transit Visa |
| AUKUS | United Kingdom, United State and Australia Known as AUKUS |
| AUMF | Authorization for Use of Military Force |
| AUTH | Authorize |
| AV | American Voices |
| AVC | Additional Voluntary Contribution |
| AVC | Aviation Vijacel Craft |
| AVL | Absent Voters List |
| AVL | Approved Vendor Listing |
| AWA | Animal Welfare Act |
| AWA | As Well As |
| AWE | Atomic Weapons Establishment |
| AWG | Advisory Working Group |
| B2K | Big Data to Knowledge |
| BA | Bureaucratic Authoritarian |
| BAC | Buy American Campaign |
| BANG | Bringing Advancement Necessary For Greatness |
| BARC | Beltsville Argricultural Research Center |