| Abbreviation | Definition |
|---|---|
| OBQI/M | Outcome-Based Quality Improvement/Monitoring |
| OBRR(CBER) | Office of Blood Research and Review (CBER) |
| OC | Immediate Office of the Commissioner |
| OC(CDER) | Office of Compliance (CDER) |
| OC(CDRH) | Office of Compliance (CDRH) |
| OC(CFSAN) | Office of Compliance (CFSAN) |
| OCAC(CFSAN) | Office of Cosmetics and Colors (CFSAN) |
| OCBQ(CBER) | Office of Compliance and Biologics Quality (CBER) |
| OCC | Counsellor to the Commissioner |
| OCC | Object Class Code |
| OCC(OC) | Office of the Chief Counsel (OC) |
| OCD(CDRH) | Office of the Center Director (CDRH) |
| OCD(CFSAN) | Office of the Center Director (CFSAN) |
| OCD(CVM) | Office of the Center Director (CVM) |
| OCER(CDRH) | Office of Communication, Education and Radiological Programs (CDRH) |
| OCI(ORA) | Office of Criminal Investigations (ORA) |
| OCIO | Office of the Chief Information Officer |
| OCIO(OC) | Office of the Chief Information Officer (OC) |
| OCM | Office of Crisis Management |
| OCM(OC) | Office of Crisis Management (OC) |