| Acronym | Meaning |
| ARNET | Acquisition Reform Network |
| PT | Picotesla |
| ARG | Argentina (ISO 3166 Trigram) |
| PAYE | Pay As You Earn |
| CHL | Chile (ISO 3166 Trigram) |
| ND | Neodymium |
| ROZ | Restricted Operations Zone |
| CHAMPUS | (U.S.) Civilian Health And Medical Program Of The Uniformed Services |
| GWS | Gulf War Syndrome |
| LLTI | Limiting Long-Term Illness - Long Lead Time Item |