| Acronym | Meaning |
| PCP | Project Cost Plan |
| FCD | Flight Control Division (JSC) |
| OAS | Orbiter Aeroflight Simulator |
| ICF | Interface Control Function |
| EXP | Expand |
| DAR | Deviation Approval Request |
| SUPT | Support |
| MPS | Master Program |
| FRMT | Format |
| REI | Range From Entry Interface (400 K) |