| Acronym | Meaning |
| MS | Master Switch |
| U/W | Used With |
| CDQR | Critical Design And Qualification Review |
| SRSF | SRB Refurbishment And Subassembly Facility |
| FCR | Final Configuration Review |
| RCC | Reinforced Carbon-carbon |
| CCC | Central Computer Complex |
| SCI | Switch Closure In |
| GSI | Government Source Inspection |
| SMEAR | Span/Mission Evaluation Action Request |