| Acronym | Meaning |
| VTP | Verification Test Plan |
| MSBLS | Microwave Scan Beam Landing System |
| EPL | Electrical Power Level |
| PWBS | Program Work Breakdown Structure |
| GFAE | Government Furnished Aircraft Equipment |
| P&M | Program Milestone |
| SSM | Systems Support Module |
| HTPB | Hydroxyl Terminated Polybutadiene (Propellant) |
| SSIBD | Shuttle System Interface Block Diagram |
| W-G | Water-Glycol |