| Acronym | Meaning |
 | TSB | Temporary Stowage Bag |
| BTC | Binary Time Code |
| I | NTC/0INTC/0Integrated Checkout |
| ISTB | Integrated Subsystem Test Bed |
| CWS | Caution And Warning System |
| RSF | Refurbishment And Subassembly Facility (KSC) |
| CDS | Closeout DoorSystem |
| DOI | Descent Orbit Insertion |
| NF | NNF Natural Flood |
| ICAO | International Civil Aviation Organization |
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