| Acronym | Meaning |
 | OMR | Orbiter Management Review |
| NRL | Naval Research Laboratory |
| EXH | Exhaust |
| OC | On-Condition |
| CWSU | Caution And Warning Status Unit |
| MMPSE | Multiuse Mission Payload Support Equipment |
| CCP | Commercial Change Proposal |
| MPSR | Multipurpose Support Room |
| RBC | Red Blood Cells |
| PCTO | Payload Cost Tradeoff Optimization |
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