| Acronym | Meaning |
 | NCEH | National Center For Environmental Health |
| FEDIX | Federal Information Exchange Inc. (ceased Operation 7/3/02) |
| FCC | Federal Communications Commission |
| CEA | Council Of Economic Advisers |
| BRD | Biological Resource Division |
| FRTIB | Federal Retirement Thrift Investment Board |
| U.N. | United Nations |
| CCC | Commodity Credit Corporation |
| DSS | Defense Security Service |
| NAL | National Agricultural Library |
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