| AACO | AIDS Activities Coordinating Office |
|---|---|
| AACO | Assault Airlift Control Officer |
| AAO | Area Audit Office |
| ADO | Assistant Duty Officer |
| AEO | Assistant Executive Officer |
| AFO | Agency Field Office (skr.) |
| AOB | Athletic Office Building (skr.) |
| BO | Box Office (skr.) |
| DEO | Department Executive Officers |
| EMO | European Music Office |