| Acronym | Meaning |
| SRT | Specification Requirements Table |
| HMCF | Hypergolic Maintenance And Checkout Facility |
| FL | MECH Fluid Mechanical |
| LST | Liquid Storage Tank |
| REC | Record (RCD Preferred) |
| OLF | Orbiter Landing Facility (now SLF) |
| FCP | Flight Correction Proposal |
| ODF | Orbit Determination Facility |
| OP | Operate |
| SMSI | Standard Manned Space Flight Initiator |