| Acronym | Meaning |
| ACC | Abrupt Climate Change |
| L2D2 | Lightweight LORAN Digital Dropsonde |
| GZ | Ground Zero |
| EPAC | External Program Advisory Committee |
| CCSM | Community Climate System Model |
| CAP | Corporate Affiliates Program |
| WMS | World Magnetic Survey |
| ANPR | Advance Notice Of Proposed Rulemaking |
| GST | GPS Science And Technology Program |
| AMTEL | Advanced Materials Testing & Evaluation Laboratory |