| Acronym | Meaning |
| GSS | Ground Support System |
| HAB | Habitation |
| SCO | Stiper Critical Oxygen |
| PAD | ProgramApprovalDocument |
| PP | Planning Package |
| M&O | Maintenance And Operations |
| CKRA | Cape Kennedy Reference Atmosphere (Changed To CCR |
| ECA | Electronics Control Assembly |
| RAAB | Remote Amplifier And Adoption Box |
| MMS | Multimission Modular Spacecraft |