| Acronym | Meaning |
| NTIS | National Technical Information Service |
| FS | Forest Service |
| OECD | Organization For Economic Cooperation And Development |
| PBGC | Pension Benefit Guaranty Corporation |
| OSCE | Office Of Child Support Enforcement |
| MSEL | Materials Science And Engineering Library |
| AAPC | Accounting And Auditing Policy Committee |
| SEC | Securities And Exchange Commission; Space Environment Center |
| ADA | Americans With Disabilities Act Of 1990 (Text Of ADA Legislation) |
| U.N. | United Nations |