| Abbreviation | Definition |
|---|---|
| COS(CFSAN) | Cosmetics Staff (CFSAN) |
| COSTART | COding Symbols for Thesaurus of Adverse Reaction Terms |
| COTA | Career Opportunities Training Agreement |
| COTA | Career Opportunities Training Agreement (HHS) |
| COTB | COmmunication Technology Branch |
| COTB(CBER) | Communication Technology Branch (CBER) |
| COTS | Commercial Off-The-Shelf |
| COTT | Committee of Ten Thousand |
| CP | Cerebral Palsy |
| CP | Chest Pain |
| CP | Citizen Petition |
| CP | Compliance Program |
| CP | Cyclophosphamide |
| CPAC | Central Pharmaceutical Affairs Council (Japan) |
| CPAP | Continuous Positive Airway Pressure |
| CPB | Compliance Programs Branch |
| CPB(CFSAN) | Compliance Programs Branch (CFSAN) |
| CPC | Compliance Policy Council |
| CPCSEA | Committee for the Purpose of Control and Supervision on Experiments on Animals |
| CPCSEA | Committee for the Purpose of Control and Supervision on Experiments on Animals (India) |