| Acronym | Meaning |
| ECLS | Environmental Control And Life Support |
| OSDH | Orbiter System Definition Handbook |
| CDT | Command Descriptor Table |
| CCP | Configuration Control Phase |
| RETRV | Retrieve |
| CSCB | Contractor's Summary Cost Breakdown |
| PTCS | Propellant Tanking Computer System |
| CSA | CYclic Strain Attenuator |
| MTT | Maximum Touch Temperature |
| MOT | Motor |