| Abbreviation | Definition |
|---|---|
| CR | Card Reader |
| CR | Certification Requirement |
| CR | Change Request |
| CR | Configuration Review |
| CR | Control Room |
| CR | Corona Resistant |
| CR | CRew |
| CR&T | Command, Ranging, and Telemetry |
| CR/DIR | Change Request DIRective |
| CRAF | Comet Rendezvous Asteroid Flyby |
| CRAS | Cost Reduction Alternative Study |
| CRBD | Change Review Board Directive |
| CRC | Contractor Recommended Code |
| CRC | Cost Reduction Curve |
| CRC | Cyclical Redundancy Coding |
| CRD | Change Request Disposition |
| CRDG | Contamination Requirements Definition Group |
| CRDP | Computer Resources Development Plan |
| CRDU | Clean Room Demonstration Unit |
| CRES | Corrosion REsistant Steel |