| Acronym | Meaning |
 | FBIS | Foreign Broadcast Information Service (see WNC) |
| ORA | Office Of Research And Applications |
| BNA | Bureau Of National Affairs |
| OCS | Office Of Community Services |
| CPMS | Defense Civilian Personnel Management Service |
| OPEC | Organization Of Petroleum Exporting Countries |
| OMAO | Office Of Marine And Aviation Operations |
| OST | Office Of Science And Technology; Office Of The Secretary Of Transportation |
| ETA | Employment And Training Administration |
| FEDIX | Federal Information Exchange Inc. (ceased Operation 7/3/02) |
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