| Acronym | Meaning |
| DPMO | Defense Prisoner Of War/Missing Personnel Office |
| FTA | Federal Transit Administration |
| MSEL | Materials Science And Engineering Library |
| OCD | Office Of Community Development |
| OFHEO | Office Of Federal Housing Enterprise Oversight |
| NGA | National Gallery Of Art; National Geospatial-Intelligence Agency |
| FFB | Federal Financing Bank |
| IO | Bureau Of International Organization Affairs |
| GILS | Government Information Locator Service |
| PBGC | Pension Benefit Guaranty Corporation |