| Abbreviation | Definition |
|---|---|
| CSS(CDER) | Controlled Substance Staff (CDER) |
| CST | Consumer Safety Technician |
| CST | Consumer Studies Team |
| CST(CFSAN) | Consumer Studies Team (CFSAN) |
| CSTE | Council of State and Territorial Epidemiologists |
| CSV | Comma Separated Values file format |
| CSV | Computer System Validation |
| CT | Clinical Trial |
| CT | Computed Tomography |
| CTA | Clinical Trial Agreement |
| CTA | clinical trial application |
| CTAP | Career Transition Assistance Plan |
| CTB(CBER) | Cell Therapies Branch (CBER) |
| CTC | ChlorTetraCycline |
| CTC | Clinical Trial Certificate |
| CTC | Common Toxicity Criteria |
| CTCAE | Common Terminology Criteria for Adverse Events |
| CTD | Common Technical Document |
| CTDB1 | Chemistry and Toxicology Devices Branch 1 |
| CTDB1(CDRH) | Chemistry and Toxicology Devices Branch 1 (CDRH) |