| Abbreviation | Definition |
|---|---|
| NABP | National Association Of Boards Of Pharmacy |
| NABR | National Association for Biomedical Research |
| NABSE | National Alliance of Black School Educators |
| NABT | National Association For Beginning Teachers |
| NABT | National Association of Bankruptcy Trustees |
| NABT | National Association of Biology Teachers |
| NACA | National Academy of Chiropractic Assistants |
| NACAA | National Acoustical Contractors Association of America |
| NACAC | National Association for College Admission Counseling |
| NACAC | National Association for College Admissions Counselors |
| NACB | National Association Of College Broadcasters |
| NACCP | National Association of Child Care Professionals |
| NACD | National Association of Chemical Distributors |
| NACDS | National Association of Chain Drug Stores |
| NACEI | National Controlling Equipment Industries |
| NACHE | National Association of Catholic Home Educators |
| NACHO | National Association of County Health Officials |
| NACOA | National Arts Centre Orchestra Association |
| NACP | Nordic Association of Clinical Physics |
| NACS | National Association of College Stores |