| Abbreviation | Definition |
|---|---|
| OFACS | Office of Facilities, Acquisitions, and Central Services |
| OFAS(CFSAN) | Office of Food Additive Safety (CFSAN) |
| OFDCER(CFSAN) | Office of Food Defense, Communication and Emergency Response (CFSAN) |
| OFFAS | Office of Field Financial and Acquisitions Services |
| OFFAS(OC) | Office of Field Financial and Acquisitions Services (OC) |
| OFM(OC) | Office of Financial Management (OC) |
| OFPA | Organic Foods Production Act of 1990 |
| OFS | Office of Food Safety |
| OFS(CFSAN) | Office of Food Safety (CFSAN) |
| OFS(OC) | Office of Financial Services (OC) |
| OFSDO | Office of Food Safety, Defense, and Outreach |
| OFSDO(CFSAN) | Office of Food Safety, Defense and Outreach (CFSAN) |
| OGD(CDER) | Office of Generic Drugs (CDER) |
| OGUD(CDRH) | Obstetrics and Gynecology Devices Branch (CDRH) |
| OHRMS | Office of Human Resources and Management Services |
| OHSC | Occupational Health and Safety Centre |
| OIA | Office of Internal Affairs |
| OIA(OC) | Office of Internal Affairs (OC) |
| OIASI | Office of International Activities and Strategic Initiatives |
| OIASI(OC) | Office of International Activities and Strategic Initiatives (OC) |