| Abbreviation | Definition |
|---|---|
| AIRIO | Agency Intramural Research Integrity Officer |
| AIS | Abbreviated Inspection System |
| AL | Annual Leave |
| AL | Approvable Letter |
| ALARA | As Low As Reasonably Achievable |
| ALFB | Access Litigation and FOI (Freedom Of Information) Branch |
| ALFB(CBER) | Acess Litigation and FOI Branch (CBER) |
| ALJ(OC) | Office of the Administrative Law Judge (OC) |
| ALJ(OC) | Office of the Administrative Law Judge (Office of the Commissioner) |
| ALL | Acute Lymphocytic Leukemia |
| ALT | ALanine aminoTransferase |
| AMA | Agricultural Marketing Act of 1946 |
| AMA | American Medical Association |
| AMA-DE | American Medical Association Drug Evaluation |
| AMB | Adminstrative Management Branch |
| AMB(CDRH) | Adminstrative Management Branch (CDRH) |
| AMDUCA | Animal Medicinal Drug Use Clarification Act |
| AME | Absorption, Metabolism, Excretion |
| AMF | Administrative Management of Files |
| AmFAR | AMerican Foundation for AIDS Research |