Support for a stronger Advanced Clean Trucks rule

A coalition of scientists and health experts is calling on the California Air Resources Board (CARB) to implement a more stringent Advanced Clean Trucks (ACT) rule. The authors argue that heavy-duty vehicles are disproportionately polluting, contributing significantly to global warming and public health crises, particularly in communities of color. They specifically criticize CARB's current proposal, which would result in zero-emissions vehicles making up only 4 percent of trucks on California roads by 2030, and advocate for higher sales standards to accelerate the transition from diesel to zero-emissions technologies.

• Heavy-duty vehicles in California represent a small fraction of total vehicles but a disproportionate share of transportation-sector pollutants, accounting for 20 percent of global warming emissions, 40 percent of NOx emissions, and 27 percent of PM2.5 emissions.
• Truck pollution has a severe impact on public health, increasing risks of cancer, heart attacks, and asthma, and disproportionately affects communities of color located near freight hotspots and busy roads.
• Despite California's Senate Bill 32 mandate to reduce greenhouse gas emissions to 40 percent below 1990 levels by 2030, emissions from heavy-duty vehicles in the state have not declined over the previous six years.
• The authors argue that the current CARB proposal is insufficient, as it would lead to zero-emissions vehicles comprising only 4 percent of trucks on California roads by 2030.

APA

Union of Concerned Scientists (2019). Support for a stronger Advanced Clean Trucks rule. https://ucs-documents.s3.amazonaws.com/clean-vehicles/20191210ScientistsHealthExpertsACTRuleLetter.pdf

Chicago

Union of Concerned Scientists. Support for a stronger Advanced Clean Trucks rule. 2019. https://ucs-documents.s3.amazonaws.com/clean-vehicles/20191210ScientistsHealthExpertsACTRuleLetter.pdf.

Wikipedia

{{cite press release |author=Union of Concerned Scientists |title=Support for a stronger Advanced Clean Trucks rule |date=9 December 2019 |url=https://ucs-documents.s3.amazonaws.com/clean-vehicles/20191210ScientistsHealthExpertsACTRuleLetter.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@misc{unionofconcernedscientists2019support, author = {{Union of Concerned Scientists}}, title = {{Support for a stronger Advanced Clean Trucks rule}}, publisher = {Union of Concerned Scientists}, year = {2019}, month = dec, url = {https://ucs-documents.s3.amazonaws.com/clean-vehicles/20191210ScientistsHealthExpertsACTRuleLetter.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }