| Acronym | Meaning |
| ESSL | Earth & Sun Systems Laboratory (formerly ATD) |
| EM-SCATTERING | Electromagnetic Scattering |
| AISC | Assessment And Information Services Center |
| ATS | Application Technology Satellite |
| DDE | Dynamic (or Direct) Data Exchange |
| C&DM | Configuration And Data Management |
| PRC | Inc. |
| EAC | Estimated Cost At Completion |
| AP | Access Permit |
| DWTF | Decontamination And Waste Treatment Facility |