| Acronym | Meaning |
| EP | Electrical Power |
| SCAT | Space CommunicationandTracking |
| NX | NOrmal To X-Axis |
| NPDS | Nuclear Particle Detection Subsystem |
| VT | Vent |
| ICCP | Interface Coordination And Control Procedure |
| STSOPO | Shuttle Transportation Systems Operations Program |
| BPT | Body Point |
| S@MSCC | SYstem |
| PPM | EPacific Plate Motion Experiment |