| Acronym | Meaning |
 | VISTA | Volunteers In Service To America |
| SSA | Social Security Administration |
| NIFC | National Interagency Fire Center |
| LBL | Ernest Orlando Lawrence Berkeley National Laboratory |
| AFS | Air Facility Sub-System |
| RBS | Rural Business-Cooperative Service |
| HAC | Health Administration Center |
| NHLBI | National Heart |
| NAL | National Agricultural Library |
| ORD | Office Of Rare Diseases |
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