| Acronym | Meaning |
 | CPCEI | Computer Program Contract End Item |
 | CSIR | Computer Systems (Hardware/Software) Integration |
 | FO | Fiber Optics |
 | EPD | Electrical Power Distribution |
 | SSR | System Requirements Review |
 | ORD | Operational Ready Data |
 | OXID | Oxidizer |
 | TFI | Time From Ignition |
 | ECRA | Engineering Change Request/Authorization |
 | MVA | Main Valve Actuator |