| Acronym | Meaning |
 | NCEH | National Center For Environmental Health |
| DMDC | Defense Manpower Data Center |
| ARC | Appalachian Regional Commission |
| OPHS | Office Of Public Health And Science |
| NCID | National Center For Infectious Diseases |
| NINR | National Institute Of Nursing Research |
| NTSB | National Transportation Safety Board |
| SS | Secret Service |
| OSWER | Office Of Solid Waste And Emergency Response |
| FAO | Food And Agriculture Organization |
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