| Acronym | Meaning |
| ETR | Eastern Test Range (ESME Preferred) |
| OFDS | Oxygen Fluid Distribution System |
| OFS | OrbiterFunctionalSimulator |
| MPT | Main Propulsion Test |
| QE | Quality Engineer |
| CIS | Central Integration Site |
| VDD | Verification Description Document |
| FUO | Follow-up Output |
| HDQ | Headquarters |
| LVDC | Launch Vehicle Digital Computer |