| Acronym | Meaning |
 | AAPC | Accounting And Auditing Policy Committee |
| ABMC | American Battle Monuments Commission |
| ACC | Air Combat Command |
| ACDA | United States Arms Control And Disarmament Agency |
| ACF | Administration For Children And Families |
| ACHP | Advisory Council On Historic Preservation |
| ACQWEB | Office Of The Under Secretary Of Defense For Acquisition And Technology |
| ACSL | Alternate Crops And Systems Lab |
| ACYF | Administration For Children |
| ADA | Americans With Disabilities Act Of 1990 (Text Of ADA Legislation) |
| ADB | Asian Development Bank |
| ADC | Program Against Digital Counterfeiting Of Currency |
| ADD | Administration On Developmental Disabilities |
| ADF | African Development Foundation |
| AFDB | African Development Bank |
| AFDC | Aid To Families With Dependent Children |
| AFIS | American Forces Information Service |
| AFRC | Air Force Reserve Command |
| AFRL | Air Force Research Laboratory |
| AFROTC | Air Force Reserve Officer Training Corps |
| AFRTS | Armed Forces Radio And Television Service |
| AFS | Air Facility Sub-System |
| AFSC | Armed Forces Staff College ˜˜(replaced By JFSC) |
| AFSPC | Air Force Space Command |
| AGRICOLA | Agricultural OnLine Access |
| AHCPR | Agency For Health Care Policy And Research (changed To AHRQ) |
| AHPCRC | Army High Performance Computing Research Center |
| AHRQ | Agency For Healthcare Research And Quality |
| AHS | American Housing Survey |
| AID | Agency For International Development |
| AIRS | Aerometric Information Retrieval System (changed To AFS) |
| AMES | Ames Laboratory |
| AMS | Agricultural Marketing Service |
| AMTRAK | National Railroad Passenger Corporation |
| ANA | Administration For Native Americans |
| ANG | Air National Guard |
| ANL | Argonne National Laboratory |
| AOA | Administration On Aging |
| APHIS | Animal And Plant Health Inspection Service |
| ARB | Administrative Review Board |
| ARBA | Army Review Boards Agency |
| ARC | Appalachian Regional Commission |
| ARL | Army Research Laboratory |
| ARNET | Acquisition Reform Network |
| ARPA | Advanced Research Projects Agency |
| ARS | Agricultural Research Service |
| ATF | Bureau Of Alcohol |
| ATSDR | Agency For Toxic Substances And Disease Registry |
| BARC | Beltsville Agricultural Research Center |
| BEA | Bureau Of Economic Analysis |
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