CARB Mandates Every New Truck Sold in California to be Zero-Emission by 2045

Sacramento, CA – Every new truck sold in California must be zero-emission by 2045.

On Thursday, the California Air Resources Board (CARB) unanimously adopted a first-in-the-world rule, known as the Advanced Clean Trucks (ACT) Regulation, requiring truck manufacturers to transition from diesel trucks and vans to electric zero-emission trucks beginning in 2024.

Specifically, manufacturers who certify Class 2b-8 chassis or complete vehicles with combustion engines will now be required to sell zero-emission trucks as an increasing percentage of their annual California sales from 2024 to 2035.


By 2035, zero-emission truck/chassis sales would need to be 55% of Class 2b – 3 straight truck sales, 75% of Class 4 – 8 straight truck sales, and 40% of truck tractor sales.

Large employers including retailers, manufacturers, brokers and others are required to report information about shipments and shuttle services.

Fleet owners with 50 or more trucks are required to report about their existing fleet operations.

“California is an innovation juggernaut that is going electric. We are showing the world that we can move goods, grow our economy and finally dump dirty diesel,” said Jared Blumenfeld, California’s Secretary for Environmental Protection.


Why Now?

According to a press release, CARB adopted the new rule to combat “the largest single source of air pollution from vehicles.”

CARB stated diesel-powered vehicles are “responsible for 70 percent of the smog-causing pollution and 80 percent of carcinogenic diesel soot even though they number only 2 million among the 30 million registered vehicles in the state.”

Additionally, CARB argues the new mandate will benefit “low-income and vulnerable communities,” and “especially Black and Brown” neighborhoods the most.

“This new rule directly addresses disproportionate risks and health and pollution burdens affecting these communities and puts California on the path for an all zero-emission short-haul drayage fleet in ports and railyards by 2035, and zero-emission ‘last-mile’ delivery trucks and vans by 2040,” CARB said.



Proponents cheered the mandate and contend it will force truck manufactures to ramp up investment in heavy-duty zero-emission technology.

“This sends a clear signal to manufacturers, fleet owners and utilities that the time to invest in zero-emission trucks – and the economy – is now,” CARB declared.

Critics such as the Diesel Technology Forum (DTF) argue California’s highly-regulated business environment has discouraged trucking companies from replenishing its fleets with trucks equipped with “clean diesel technology.”

This has resulted in leaving higher emitting trucks on the road for longer, according to DTF.


“Today, diesel engines using renewable diesel fuel and blends of biodiesel fuels in California are delivering more greenhouse gas benefits than all electric vehicles combined,” said Allen Schaeffer, DTF’s Executive Director. “The replacement of older trucks in California with more efficient new diesel models, coupled with the use of these biofuels, represents a low-cost solution to deliver substantial and immediate greenhouse gas reductions compared to other approaches.”


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More Regulations On The Way

However, CARB says it is just getting started and will soon consider two complementary regulations.

The first sets a stringent new limit on NOx (oxides of nitrogen), in an effort to combat smog.


This will require that new trucks that still use fossil fuels include the most effective exhaust control technology during the transition to electric trucks.

There is also a proposed requirement for larger fleets in the state to transition to electric trucks year over year.



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