| Abbreviation | Definition |
|---|---|
| CEPPO | Chemical Emergency Preparedness and Prevention Office |
| CEQ | Council on Environmental Quality |
| CERCLIS | Comprehensive Environmental Response, Compensation, and Liability Information System |
| CERG | CBER Emergency Relocation Group |
| CERTS | Centers for Education and Research on TherapeuticS |
| CES(CFSAN) | Consumer Education Staff (Center for Food Safety and Applied Nutrition) |
| CET(CFSAN) | Clinical Evaluation Team (Center for Food Safety and Applied Nutrition) |
| CEU | Continuing Education Units |
| CF | Cystic Fibrosis |
| CFA | Catfish Farmers of America |
| CFBR | Center for Biologics Research |
| CFC | ChloroFluoroCarbon |
| CFG | Center for Functional Genomics |
| CFG | Certificate for Foreign Government |
| CFIA | Canadian Food Inspection Agency |
| CFN | Central File Number |
| CFO(OC) | Chief Financial Officer (Office of the Commissioner) |
| CFOC | Chief Financial Officers Council |
| CFOI | Census of Fatal Occupational Injuries |
| CFR | Contract Financial Requirements |