| Acronym | Meaning |
 | OAS | Organization Of American States |
| NNSA | National Nuclear Security Administration |
| NIC | National Institute Of Corrections |
| AMTRAK | National Railroad Passenger Corporation |
| NSTL | National Space Technology Laboratories |
| DOT | Department Of Transportation |
| FCC | Federal Communications Commission |
| EEOC | Equal Employment Opportunity Commission |
| TSA | Transportation Security Administration |
| NIOSH | National Institute For Occupational Safety And Health |
Browse by Letter:
