| Acronym | Meaning |
| TPI | Terminal Phase Initiation |
| SPL | Serialized Parts List |
| PB | Phonetically Balanced |
| GPS | Global Positioning System |
| LTD | Limited |
| LIC | Load Interface Circuit |
| MPP | Material Processing Procedure |
| PVT | Pressure |
| HCMM | Heat Capacity Mapping Mission |
| KSSS | KSC Station Set Specification |