| Acronym | Meaning |
| CCRA | Cape Canaveral Reference Atmosphere |
| EOHT | External Oxygen And Hydrogen Tanks |
| AC | Comptroller Office |
| ICWG | Interface Control Working Group |
| PSST | Periodic Significant Scheduled Tasks |
| HEX | Hexadecimal |
| RVN | Requirements Verification Network |
| ECC | Engineering Change Control |
| SAS | Stimuli Analog Refresh Table |
| SRCBD | Software Requirements Control Board Directive |