| Abbreviation | Definition |
|---|---|
| CMS | Congestion Management System |
| CMS | Congestion Management Systems |
| CMSA | Consolidated Metropolitan Statistical Area |
| CMT | Caravan Motor Touristik |
| CMTA | California Medical Transportation Association |
| CMTA | Capital Metropolitan Transportation Authority |
| CMTA | Central Maryland Transportation Alliance |
| CMTA | Central Minnesota Transportation Alliance |
| CMTS | Committee on the Marine Transportation System |
| CMTV | Caiman Multi Terrain Vehicle |
| CMV | Commercial Motor Vehicle |
| CMV | Converted Meteorological Visibility |
| CMVI | Civil Motor Vehicle Infraction |
| CMVI | Civil Motor Vehicle Infractions |
| CMVI | Commercial Motor Vehicle Investigations |
| CMVR | Central Motor Vehicle Rules |
| CMVR | Central Motor Vehicles Rules |
| CMVSA | Canadian Motor Vehicle Safety Act |
| CMVSA | Commercial Motor Vehicle Safety Act |
| CMVSA | Commercial Motor Vehicle Safety Act of 1986 |