| Acronym | Meaning |
| ESS | Equipment Support Section |
| SCIS | Standard Cubic Inches Per Second |
| CSE | Configuration Switching EquiPment |
| OA | Overall |
| PI | Program Introduction |
| ARC | Ames Research Center |
| PRPS | Programming Requirements Process Specification |
| TI | Technical Integration |
| I | D&CA Inverter Distribution And Control Assembly |
| REJ | Reject |