| Acronym | Meaning |
 | PRCBD | ProgramRequirementsControl Board Directive |
| CLC | Change Letter Control |
| MSEC | Master Separation Events Controller |
| STL | Space Technology Laboratories |
| DIP | Designated Inspection Point |
| MCP | Monitoring And Control Panel |
| RTOP | Research And Technology Objectives And Plans |
| RLA | Repair Level Analysis |
| HV | Hydrogen Vent |
| FT | Formal Training |
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