| Acronym | Meaning |
| NCIU | Network Common Interface Unit |
| SF-SOO | KSC Safety Operations Office |
| GSO | Ground Systems Operations |
| ELMS | Elastic Loop Mobility System |
| REC | Record (RCD Preferred) |
| TN | Technical Note |
| HCSL | Hybrid Computation And Simulation Laboratory |
| ARS | Archive And Retrieval Subsystem (PPCU) |
| SADEC | SAFESan Andreas Fault Experiment |
| CI | Continuous Interlock |