| Acronym | Meaning |
| CGAU | Cabin Gas Analysis Unit |
| DCC | Document Control Center |
| CRDP | Computer Resources Development Plan |
| USBS | Unified S-Band System (Subsystem) |
| PMPL | Preferred Mechanical Parts List |
| PMS | Performance Management System |
| LSSF | Life Sciences Support Facility |
| VDI | Vertical Display Indicator |
| P&M | Performance Monitor |
| PCA | Pneumatic Control Assembly |