| Abbreviation | Definition |
|---|---|
| NET | Narcotics Eradication Team |
| NF | Not Found |
| NFA | National Firearms Act |
| NFA | No Fixed Address |
| NFAB | National Fingerprint Accreditation Board |
| NFF | National Fingerprint File |
| NFL | National Federation of Law |
| NFL | Not For Law |
| NFPA | National Federation of Paralegal Associations |
| NFSAO | Not Filed by State Attorney's Office |
| NGRI | Not Guilty by Reason of Insanity |
| NHDA | Nursing Home Diversion Act |
| NHDOC | New Hampshire Department Of Corrections |
| NHP | Nevada Highway Patrol |
| NHPA | National Historic Preservation Act |
| NHRA | Nursing Home Reform Act |
| NHSSCA | National Health Service and Social Care Act |
| NI | No Issue |
| NIA | Non Injury Accident |
| NIBRS | National Incident Based Reporting System |