Medical Abbreviations and Acronyms

1. OPS (CDER)
   Office of Pharmaceutical Science (CDER)
2. OPT (OC)
   Office of Pediatric Therapeutics (OC)
3. OR (CVM)
   Office of Research (CVM)
4. ORADSS
   Office of Regulatory Affairs Reporting, Analysis, and Decision Support System
5. Orange Book
   Approved Drug Products with Therapeutic Equivalence Evaluations
6. ORL-DO (ORA)
   ORLando District Office (Office of Regulatory Affairs)
7. ORM (ORA)
   Office of Resource Management (ORA)
8. ORO (ORA)
   Office of Regional Operations (ORA)
9. ORP (CDER)
   Office of Regulatory Policy (Center for Drug Evaluation and Research)
10. ORP (CFSAN)
    Office of Regulations and Policy (Center for Food Safety and Applied Nutrition)
11. ORPS (OC)
    Office of Real Property Services (OC)
12. ORPSS
    Office of Regulations, Policy, and Social Sciences
13. ORPSS (CFSAN)
    Office of Regulations, Policy and Social Sciences (CFSAN)
14. ORS (CFSAN)
    Office of Regulatory Science (CFSAN)
15. OS (CDER)
    Operations Staff (CDER)
16. OS (CFSAN)
    Office of Seafood (CFSAN)
17. OS (OC)
    Operations Staff (OC)
18. OSAS (CFSAN)
    Office of Scientific Analysis and Support (CFSAN)
19. OSB (CDRH)
    Office of Surveillance and Biometrics (CDRH)
20. OSB (CFSAN)
    Office Services Branch (CFSAN)

Last updated: May 2, 2025 — Total entries: 207,332