| Abbreviation | Definition |
|---|---|
| CLTT | Center for Logistics Trade and Transportation |
| CLU | Compatible Land Use |
| CLV | Cable Laying Vessel |
| CM | Container Managed |
| CMAC | Canadian Marine Advisory Council |
| CMAQ | Congestion Mitigation and Air Quality |
| CMBT | Chennai Moffusil Bus Terminus |
| CME | Chief Mechanical Engineer |
| CME | Courtesy Marine Examination |
| CMH | Port Columbus International Airport |
| CMID | Common Marine Inspection Document |
| CMMC | Civilian Merchant Marine Committee |
| CMNPS | Canadian Minimum Navigation Performance Specification Airspace |
| CMOS | Complementary Metal Oxide Semiconductor |
| CMOU | Caribbean Memorandum of Understanding |
| CMP | Capacity Management Program |
| CMP | Cargo Movement Penalty |
| CMP | Central Meridian Passage |
| CMS | Center Mounted Shifter |
| CMS | Changeable Message Sign |