| Acronym | Meaning |
 | ZIP (CODE) | Zone Improvement Plan |
| ARC | Appalachian Regional Commission |
| RICHS | Rural Information Center Health Service |
| BTS | Bureau Of Transportation Statistics |
| CBIAC | Chemical And Biological Defense Information Analysis Center |
| ADD | Administration On Developmental Disabilities |
| DSS | Defense Security Service |
| FIPS | Federal Information Processing Standard |
| WHMO | White House Military Office |
| FSS | Federal Supply Service |
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