Reducing Pollution from Heavy-Duty Vehicles

The California Air Resources Board (CARB) works to cut pollution from medium- and heavy-duty vehicles. We do this through regulations, incentives, and other programs and policies. Cleaner vehicles can protect public health, reduce climate pollution, and improve air quality.

CARB has launched Drive Forward to look at new rules and programs to reduce pollution from cars, light trucks and heavy-duty vehicles. Learn about current and upcoming efforts and how you can help shape our programs.

Heavy-Duty Vehicle Programs and Resources

Drive Forward Fleet

Potential new rules: heavy-duty fleets & vehicles

ZEV TruckStop

Learn about the benefits of going zero-emission

The TruckStop

Learn about heavy-duty vehicle programs

Current Regulations and Programs

Learn more about programs we are currently implementing to reduce pollution and climate impacts.

Advanced Clean Fleets Regulation for State and Local Governments
A phased transition for state and local government fleets to use zero-emission trucks, where possible.
Clean Truck Check
Inspection and maintenance requirements for heavy-duty vehicles.
Innovative Clean Transit
Regulations to reduce pollution from transit buses.
Heavy-Duty Omnibus Regulation
Reduces pollution from heavy-duty engines. Manufacturers may continue to seek, and CARB will continue to process, applications for CARB certification to the Omnibus requirements on a voluntary basis as described in MAC-ECCD-2025-08.
Zero-Emission Airport Shuttle Regulation
Accelerates the adoption of zero-emission technology in airport shuttles.
School Bus Program
Requirements and incentive funding for new, cleaner school buses.
Incentives and Funding
Learn about funding programs to help purchase cleaner vehicles and zero-emission technologies.

Resources

Learn about webinars, tools, events, workgroups and hands-on guidance to help you understand the regulatory requirements and benefits of ZEVs.

ZEV TruckStop
Resources for fleets wanting to learn more about zero-emission vehicles, incentives and infrastructure.
The TruckStop
One-stop-shop for information about medium- and heavy-duty vehicles, regulations, and incentive programs.

Drive Forward Truck Forums

A set of workgroups focused on topic areas critical to a successful zero-emission vehicle market.

Infrastructure Workgroup
A workgroup that focuses on infrastructure development and operation while supporting the needs of California’s fleets and drivers.
Outreach Workgroup
A workgroup that focuses on clear, accessible information and meaningful engagement around medium- and heavy-duty vehicles.