| Acronym | Meaning |
| INSTRUMENTA | Instrumentation And Communication |
| PROP | Proportioning |
| MTOW | Maximum Takeoff Weight |
| SR&Q | Safety |
| STC | Spacecraft Test Conductor |
| I | ECO Inboard Engine Cutoff |
| EM | Exception Monitor |
| ERRC | Expendability/Recoverability/Repair Capability |
| EIASN | End Item Assembly Sequence Number |
| NOES | National Operational Environmental Satellite Serv. |