| Acronym | Meaning |
| MERL | Materials Engineering Research Laboratory |
| MS | Mating Sequence And Control |
| SMAB | Solid Motor Assembly Building |
| TM | Technical Management |
| BCCT | Break Control Command Transducers |
| S/M | Service/Maintenance |
| E | LSCEarth Landing Sequence Controller |
| TSM | Tail Service Mast |
| K-STSN | KSC STS Notice |
| PSST | Periodic Significant Scheduled Tasks |