| Acronym | Meaning |
| EMCD | Electro-Mechanical Control Diagram |
| BOD | Beneficial Occupancy Date |
| PDRS | Payload Deployment And Retrieval System |
| EOS | Extended Operating System |
| PIV | Peak Inverse Voltage |
| PETS | P/L Experiment Test System (KSC) |
| LBDT | Low Bay Dolly Tug |
| EPDC | Electrical Power Distribution And Control |
| MED | Medical |
| POGO | Polar Orbiting GeophYsical Observatory |