| Acronym | Meaning |
| SAND | I |
| RMS | Redundancy Management System |
| CMV | Common Mode Voltage |
| LTD | Lift-to-Drag |
| OPO | Orbiter Project(s) Office |
| CSDD | Control Systems DeveloPment Division (JSC) |
| DEF | Definition |
| IFASC | Integrated Functions Assessment Steering Committ |
| SL | Sea Level |
| ECP | Engineering Change Proposal |