| Acronym | Meaning |
| RAC | ReliabilitY Action Center |
| TBA | To Be Added |
| BP | C&TSSCommunication And Tracking Subsystem |
| MEE | Mission Essential Equipment |
| PDR | Preliminary Data Requirements |
| INV | MGINVMGT Inventory Management |
| TRR | Test Readiness Review |
| CSM | Computer Status Matrix |
| VIA | By Means Of (By Way Of) |
| HG | Mercury |