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This Week, California 70,000-Vehicle Restriction Goes into Effect

diesel cars above 2000cc banned

This week, the latest restriction in a series of rules that were established 15 years ago comes into force, banning almost 70,000 heavy vehicles from driving on Californian roadways.

Any diesel vehicles weighing more than 14,000 pounds and developed before 2010 are prohibited from operating on Californian roads beginning on January 1, 2023, according to a set of clean air laws put into place by the California Air Resources Board (CARB) in 2008 and afterward signed into law as Senate Bill 1.


According to CARB, 70% of the cancer risk from airborne toxins is caused by diesel exhaust. To lower emissions of particulate matter (PM) and nitrogen oxides (NOx), almost all buses and trucks will be required to have engines with model years 2010 or later by January 1, 2023.

As per KCRA, the agency anticipates that 200,000 vehicles, such as 70,000 big rig trucks, do not follow to the regulation and will be prevented from driving in the state. Vehicles that have had their engines replaced with ones created after 2010 and those that cover less than 1,000 miles annually will be free from the ban.


The DMV will refuse to register non-compliant buses and trucks and CARB’s enforcement section will analyze commercial fleets and issue citations as necessary.

According to a board memo, the majority of truck and bus fleet owners in the state have indeed taken the steps required to achieve compliance, placing post-2010 engines into 1.58 million vehicles.