| Acronym | Meaning |
 | PL | Payload (P/L Preferred) |
| K-IUSPS | KSC IUS Project Specification |
| OEX | Orbiter Experiments |
| CKAFS | Cape Kennedy Air Force Station (Changed To CCAFS) |
| DAS | Digital Address System |
| DECU | Data Exchange Control Unit |
| PAD | Propellant Acquisition Device |
| GP | General Purpose |
| ILA | Instrument Landing Approach |
| ASE | Airborne Support Equipment |
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