| Abbreviation | Definition |
|---|---|
| NTP | National Toxicology Program |
| NUCC | National Uniform Claim Committee |
| NVC | National Vaccine Commission |
| nvCJD | New Variant Creutzfeldt-Jakob Disease |
| NVICP | National Vaccine Injury Compensation Program |
| NVLAP | National Voluntary Laboratory Accreditation Program |
| NVOAD | National Volunteer Organizations Active in Disaster |
| NVP | National Vaccine Program |
| NVPO | National Vaccine Program Office |
| NVSN | New Vaccine Surveillance Network |
| NVSS | National Vital Statistics System |
| NVTB | Neurotoxicological and in-Vitro Toxicology Branch |
| NVTB(CFSAN) | Neurotoxicological and In Vitro Toxicology Branch (CFSAN) |
| NWK-DO | Newark District Office |
| NWR | NOAA (National Oceanic and Atmospheric Administration) Weather Radio |
| NWS | National Weather Service |
| OA | OsteoArthritis |
| OAGS(OC) | Officeof Acquisitions and Grants Services (OC) |
| OAI | official action indicated |
| OAP | Office of Antimicrobial Products |