| Acronym | Meaning |
| CO2 | Carbon Dioxide |
| CDF | Confined Detonating Fuse |
| PAYCOM | Payload Command |
| TTCA | Thrust Translation Controller Assembly |
| H | EPAHigh Efficiency Particle Accumulator |
| MIO | Management Integration Office |
| DCR | Document Change Record (or Review) |
| RHC | Rotational Hand Controller |
| ORF | Orifice |
| NVR | Non-Verification Required |