| Acronym | Meaning |
| MDR | Manually Digitized Radar |
| XUV | Extreme Ultraviolet |
| AMRV | Advanced Maneuvering Re-entry Vehicle |
| ISTP | International Solar Terrestrial Program |
| NEPA | National Environmental Policy Act |
| DGC | Division Of Grants And Contracts |
| PROM | Programmable Read-Only Memory |
| ACS | Automated Cartridge System |
| DOE/HQ | Department Of Energy Headquarters |
| PDW | Preliminary Design Walk-through |