| Acronym | Meaning |
 | SMVRD | Shuttle Master Verification Requirements Document |
| MMLS | Model-Modes-Loads-Stresses |
| UNIV | Universal |
| ERCA | Electrochemically Regenerable CO2Absorber |
| PGM | Program (able) |
| LOC | Location |
| GSFC | Goddard Space Flight Center |
| OPLF | Orbiter Processing And Landing Facility |
| CRD | Change Request Disposition |
| MW | Mmw Milliwatt |
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