| Acronym | Meaning |
| ORIG | Origin |
| DD | Data Display |
| PRD | ProcurementRequirementsDocument |
| TPS | Test Preparation Sheet |
| QRSL | Quick-Reaction Space Laboratory |
| FO/FS | Fail-Operational/Fail-Safe |
| PUSS | Pallet Utility Support Structure |
| DD | Mechanical And Facilities Engineering (KSC DE Dir.) |
| SSS | Space ShuttleSystem |
| STSOPO | Off Ice (JSC) |