| Acronym | Meaning |
| K-STSN | KSC STS Notice |
| SDR | Space Division Regulation |
| HCF | High Cycle Fatigue |
| MTOGW | Maximum Takeoff Gross Weight |
| NET | PositivNet Positive Suction Pressure |
| IPD | Information Processing Division |
| STS | Structural Transition Section |
| FDIR | Recovery/Recognition |
| DOT/CIAP | DOT Climatic Impact Assessment Program |
| IEF | Isoelectric Focusing |