| Acronym | Meaning |
| OAT | Operational Acceptance Test |
| CIS | Contractor's Information Submittal |
| SFPS | Single Failure Point Summary |
| MCC-NASA | Mission Control Center-NASA |
| TED | Trailing Edge Down |
| UDL | Update Link |
| IWG | Investigator Working Group |
| IPS | IPT In-Plant Transporter |
| PRCBD | ProgramRequirementsControl Board Directive |
| ENG | Engine |