| Acronym | Meaning |
| PDRD | Procurement Data Requirements Document |
| TL | Time Latest |
| CPR | Critical Problem Report |
| T/R | Transportation Request |
| DME | Distance-measuring Equipment |
| GPBIM | General Purpose Buffer Interface Module |
| NRM | Nonrecurring Maintenance |
| SP-PMS | Performance Management Systems Office (KSC) |
| DNP | Dynamic Nuclear Polarization |
| EJN | Ejection |