CART
- Campus Area Rapid Transit
- Canada Agricultural Review Tribunal
- Cart (disambiguation)
- Center for Advanced Research and Technology
- Centre for Appropriate Rural Technology
- Championship Auto Racing Teams
- Chimeric antigen receptor T cell
- Christian African Relief Trust
- Churchie Art
- Classification and regression tree
- Clermont Transportation Connection
- Cocaine- and amphetamine-regulated transcript
- Coleshill Auxiliary Research Team
- Combination antiretroviral therapy
- Communication access real-time translation
- Federal Bureau of Investigation
- Manchester Transit Authority
- New Hampshire
- Torulene dioxygenase