| Acronym | Meaning |
| PCB | Product Configuration Baseline |
| ESP | Engine Service Platforms |
| GCO | Ground Checkout |
| QUAT | Quaternion |
| CORE | Common Operational Research Equipment |
| SPD | Standard Practice Directive |
| PIO | Public Information Office |
| TD&SA | Telephone |
| V-CITE | Vertical-Cargo Integration Test EquiPment |
| GLS | Ground Launch Sequence (Sequencer) |