| Acronym | Meaning |
| PTD | Provisioning Technical Documentation |
| FCP | Fuel Cell Power (Plant) |
| EVT | Extravehicular Transfer |
| URT | Upright |
| HSG | High Sustained Gs Acceleration |
| NH3 | ANH3 Ammonia |
| RIC | Resistance Inductance And Capacitance |
| OLSP | Orbiter Logistics Support Plan |
| CPCL | Computer Program Control Library |
| LC | Incremental Cost |