| Acronym | Meaning |
| NLRB | National Labor Relations Board |
| ARC | Appalachian Regional Commission |
| CIT | Center For Information Technology |
| DOD | Department Of Defense |
| NIMH | National Institute Of Mental Health |
| UPU | Universal Postal Union |
| BNA | Bureau Of National Affairs |
| ORA | Office Of Research And Applications |
| MMWR | Morbidity And Mortality Weekly Report |
| PAHO | Pan American Health Organization |