sort by Rank | Alpha
| Possible Meanings | Rank |
| Cultural Arts Resources for Teachers and Students | **** |
| Central Area Rural Transit System | *** |
| Centre for Advanced Religious and Theological Studies | *** |
| Community Action Rural Transit System | ** |
| Craven Area Rural Transit System | ** |
| Chemeketa Area Regional Transportation System | ** |
| Capital Area Rural Transit System | ** |
| Commissary Advanced Resale Transaction Systems | ** |
| Chautauqua Area Rural Transit System | ** |
| Cullman Area Rural Transportation System | ** |
| Chautauqua Area Regional Transit System | ** |
| Cocaine and Amphetamine Regulated Transcript | * |
| Common Automated Radar Terminal System | * |
| Conservation Areas Reporting and Tracking System | * |
| Chemeketa Area Regional Transit System | * |
| Capacitors and Resistors Technology Symposium | * |
| Center for Autonomous Real Time Systems | * |
| Community Adjustment Rating of Transition Success | * |
| Computer Aided Architectural Analysis of Real-TimeSystems | * |