| Acronym | Meaning |
 | FTA | Federal Transit Administration |
| CBER | Center For Biologics Evaluation And Research |
| NREN | National Research And Education Network |
| OIIA | Office Of Intergovernmental And Interagency Affairs |
| ACSL | Alternate Crops And Systems Lab |
| NCA | National Cemetery Administration |
| CHID | Combined Health Information Database |
| U.N. | United Nations |
| IAEA | International Atomic Energy Agency |
| ITC | United States International Trade Commission |
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