| Acronym | Meaning |
 | DNA | Does Not Apply |
| PRCB | ProgramRequirementsChangeBoard |
| CHCS | Cabin Humidity Control Subsystem |
| MACH | Velocity Relative To The Speed Of Sound |
| ELS | Earth Landing System (Subsystem) |
| DDPF | Dedicated Display Processing Function |
| TFR | Trouble And Failure Report |
| ML | Mold Line |
| LAIU | Launch Abort Interface Unit |
| DCP | Development Cost Plan |
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