| Acronym | Meaning |
 | OIVS | Orbiter Interface Verification Set |
| LEO | Low Earth Orbit |
| TPS | Thermal Protection System |
| FREO | DIV FrequencY Divider |
| SD/FS | Smoke Detector/Fire SuPpression |
| SOT | Strap-on Tank |
| SSPPSG | Space Shuttle Payload Planning Steering Group |
| PCVL | Pilot Controlled Visual Landing |
| CDF | Circuit Design Fabrication |
| PBI | Push Button Indicator |
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