| Acronym | Meaning |
| DSI (+/OR MOD) | Defense Security Installation |
| RDA | Remote Database Access |
| CCHW | Citizens Clearinghouse For Hazardous Wastes |
| MM90 | N/A |
| ADDE | Abstract Distributed Data Environment |
| AIRS | Advanced Inertial Reference Sphere |
| PCO | Polar Cap Observatory |
| OFPS | Office Of Field Project Support |
| EROS | Earth Resources Observation System |
| PBL | Planetary Boundary Layer |