| Abbreviation | Definition |
|---|---|
| CO | Compliance Officer |
| CO | Contract Officer |
| COA | Certificate Of Analysis |
| COB | Close Of Business |
| COB(OC) | Contract Operations Branch (Office of the Commissioner) |
| COBRA | Consolidated Omnibus Budget Reconciliation Act |
| COBTA | Council On Biologics and Therapeutic Agents |
| COCB | Communication and Coordination Branch |
| COCB(CFSAN) | Communication and Coordination Branch (CFSAN) |
| CODB | Cardiovascular and Ophthalmic Devices Branch |
| CODB(CDRH) | Cardiovascular and Ophthalmic Devices Branch (CDRH) |
| CODEX | Codex Alimentarius collection of food standards |
| CoE | Center of Excellence |
| COE | Certificate Of Exportability |
| COFEPRIS | Comisin Federal para la Proteccin contra Riesgos Sanitarios (Federal Commission for the Protection Against Sanitary Risks) (Mexico) |
| COFEPRIS | COmision FEderal para la Proteccion contra RIesgos Sanitarios |
| COI | Conflict Of Interest |
| COLA | Cost Of Living Allowance |
| COLD | chronic obstructive lung disease |
| COMAH | Control Of Major Accident Hazards Regulation of 1999 |