| Acronym | Meaning |
| CMS-2 | Cambridge Monitoring System (IBM Computer Program) |
| SPDB | Subsystem Power Distribution BC)x |
| PTC | Portable Temperature Controller |
| OPF | Orbiter Processing Facility |
| HTM | High Temperature |
| REG | Register |
| COM | Common |
| RTE | Responsible Test Engineer |
| CCR | Control Center Rack |
| OSHA | Occupational Safety And Health Act (Activity) |