| Acronym | Meaning |
| PWA | Product Work Authorization |
| FUS/LF | Fuselage |
| MMU | Mass Memory Unit |
| EIS | Environmental Impact Statement |
| PBPS | Post-Boost Propulsion System(s) |
| HDRSS | High Data Rate Storage System |
| PDRS | Payload Deployment And Retrieval System |
| DAF | Data Analysis Facility |
| PACE | Prelaunch Automatic Checkout Equipment |
| SOT | Strap-on Tank |