| Acronym | Meaning |
| NWS | National Weather Service |
| OMV | Oxygen Manual Valve |
| EMPGS | Electrical/Mechanical Power Generation SubsYstem |
| OPT | OPerational Pressure Transducer |
| DEIS | Design Evaluation Inspection Simulator |
| SYSTRAN | Systems Analysis Translator |
| SSDD | Software System Design Document |
| TWL | Total Weight Loss |
| PGDCS | Power Generation |
| SSIBD | Shuttle System Interface Block Diagram |