| Acronym | Meaning |
| GWEN | Ground Wave Emergency Network |
| AGFA | Advanced Gust Front Algorithm |
| AFS | Auxiliary Feedwater System |
| AML | Advanced Materials Laboratory |
| IPOC | International Partner Operations Center |
| LLR | Lunar Laser Ranging |
| STA | System Technology Associates |
| AI | Authorized Inspector |
| NNMI | Nonlinear Normal Mode Initialization Software |
| SDM | Suit Of Software For UNIX-based Computing Platforms |