California’s Advanced Clean Trucks (ACT) rule: what it is and recommendations for other global regions

Jul 30, 2020 11:00 am

This digital dialogue with the California Air Resources Board (CARB) discussed its recently adopted Advanced Clean Trucks (ACT) rule. The rule takes effect in 2024 and requires at least 40% of all tractor-trailers and 75% of all delivery trucks and vans sold in California to be zero emissions by 2035. Following ACT’s adoption, 15 U.S. states and the District of Columbia have agreed to work together to accelerate the market for zero-emission medium- and heavy-duty vehicles and develop an action plan within 6 months.

Being the most ambitious zero-emission truck regulation in the world, CARB set an example for other global regions to follow. China and Europe in particular have implemented a suite of policies to promote zero-emission commercial vehicles (ZECVs) with emphasis on vehicle incentives and infrastructure investments. The adoption of a sales mandate on zero-emission trucks can complement these incentives and send stronger signals that will enable much faster economies of scale worldwide. This is consistent with CALSTART’s Drive to Zero program to accelerate ZECV deployment globally by aligning policies and incentives in leading regions worldwide.


Three short presentations were followed by an interactive panel discussion and audience Q&A:

Global alignment around ACT to accelerate the uptake of zero-emission commercial vehicles

Cristiano Façanha, PhD – Global Director, CALSTART

ACT rule and requirements

Sydney Vergis, PhD – Assistant Division Chief, California Air Resources Board (CARB)

ACT evaluation and recommendations for other regions

Meredith Alexander, JD – Policy Director, CALSTART

Panel discussion


Video Recording