| Acronym | Meaning |
| ACRC | Assured Crew Return Capability - Now ACRV |
| D | LSC Defense Logistics Service Center |
| NLT | Not Less Than |
| RMC | Redundancy Management Control |
| H/S | IR Hardware/Software Integration Review |
| IVT | Intervehicular Transfer |
| K-SSS | KSC Shuttle Project Station Set Specification |
| SSB | Single Sideband |
| RIC | Rockwell International Corporation |
| ALERT | Acute Launch Emergency Reliability Tip |