| Acronym | Meaning |
| NMC | National Meteorological Center |
| CIB | Change Impact Board |
| EDS | Emergency Detection System |
| M&M | Materials And Maintenance |
| NORMAL | LoadNormal Load Factor (g) |
| IFO | Information Systems Office |
| DIH | Discrate Input High |
| BPM | Beats Per Minute |
| MOV | Main Oxidizer Valve |
| GECALL | GCOS Program Element Name |