| Acronym | Meaning |
| MRL | Manipulator Retention Latch |
| DEI | Design Engineering Identification |
| GPS | Global Positioning System |
| VPM | Vehicle ProjectManager |
| PPS | Pneumatic Power Subsystem |
| OC | Overcurrent |
| HPPF | Horizontal Payloads Processing Facility |
| CL | Closed Loop |
| ST | Structural |
| GITG | Ground Interface Technical Group |