| Acronym | Meaning |
 | ERS | Economic Research Service |
| NIEHS | National Institute Of Environmental Health Sciences |
| DLSA | Defense Legal Services Agency |
| PHA | Public Housing Agency |
| SITES | Smithsonian Institution Traveling Exhibition Service |
| NIDCD | National Institute On Deafness And Other Communication Disorders |
| EM | Office Of Environmental Management |
| NIAMS | National Institute Of Arthritis And Musculoskeletal And Skin Diseases |
| GCMD | Global Change Master Directory |
| FAS | Foreign Agricultural Service |
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