| Acronym | Meaning |
| OLSP | Orbiter Logistics Support Plan |
| ROS | Removable Overhead Structure |
| IDTA | Interdivisional Technical Agreement |
| DE | Doppler Extractor |
| IV | Interface Volume |
| MAL | Malfunction |
| P/L | Postlanding |
| STM | Signal Termination Module |
| CLS | Contingency Landing Site(s) |
| SL | Seal |