| Acronym | Meaning |
 | SPMS | Special Purpose Manipulator System |
| CRO | Cathode Ray Oscillograph(s) Or Oscilloscopes |
| DCR | Document Change Record (or Review) |
| CCL | Commonality Candidate List |
| SSPTF | Santa Susana Propulsion Test Facility (see SSFL) |
| HDDR | High-Density Digital Recorder |
| PU | Propellant Unit |
| OCDR | Orbiter Critical Design Review |
| PSP | Payload Specialist Panel |
| PPR | Payload Preparation Room |
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