| Acronym | Meaning |
| IMDB | Integrated Maintenance Data Base |
| DS | Data Storage |
| T/R | Transportation Request |
| NPDS | Nuclear Particle Detection Subsystem |
| OPS | Orbiter Project Schedules |
| LM | Intermediate Moisture |
| TARC | Through Axis Rotational Control |
| PMF | Program Management Facility |
| CDB | Command Data Base |
| HPOTP | High Pressure Oxidizer Turbopump |