| Abbreviation | Definition |
|---|---|
| CCIT | California Center for Innovative Transportation |
| CCITT | Center for the Commercialization of Innovative Transportation Technology |
| CCL | Cabin Condition Log |
| CCMIS | Compliance Management Information System |
| CCMTA | Canadian Council of Motor Transport Administrators |
| CCMTA|CCATM | the Canadian Council of Motor Transport Administrators | conseil canadien des administrateurs en transport motorisé |
| CCMTA-CCATM | the Canadian Council of Motor Transport Administrators - conseil canadien des administrateurs en transport motorisé |
| CCP | Code Change Point |
| CCPA | Columbiana County Port Authority |
| CCPM | Collective Cyclic Pitch Mixing |
| CCPM | Collective- Cyclic Program Mixing |
| CCPT | Carilion Clinic Patient Transportation |
| CCRTA | Corpus Christi Regional Transportation Authority |
| CCRV | Captive Carry Reliability Vehicle |
| CCT | Covered Car Transporter |
| CCT | Covered Carriage Truck |
| CCT | Customized Community Transportation |
| CCTM | Certified Community Transit Manager |
| CCTO | Cebu City Transportation Office |
| CCTS | Cabarrus County Transportation Services |