
California lawmakers have recently introduced new regulations to combat the negative effects of greenhouse gases on the environment. According to the EPA, carbon dioxide accounts for approximately 65% of all greenhouse gases that are currently affecting the environment, and the burning of fossil fuels is largely responsible for this. To mitigate the damage of greenhouse gas-related global warming, governments are implementing measures to reduce the burning of fossil fuels. In California, new laws have been introduced to promote public health and reduce environmental impact. These laws will significantly reduce and eventually eliminate diesel engine trucks throughout the state. Diesel vehicles produce more emissions per unit of fuel burned than gasoline vehicles, making them a target for the new legislation. The state has also made other recent decisions related to vehicle emissions. Read on for more information.
What are the Basics of California’s New Ban on Diesel Trucks?
California lawmakers have put into effect a new regulation that will outlaw the sale of new diesel-burning semi-trucks across the state by 2036. In addition, they have also implemented a law that all trucks registered in California must be zero-emissions by 2042.
The new rule applies to all heavy-duty vehicles, including transport, commercial, and garbage trucks. Collectively known as the “Advanced Clean Fleets rule,” this law is the first of its kind in the world.
The main objective of the Advanced Clean Fleets rule is to minimize air pollution. According to the Union of Concerned Scientists, medium and heavy-duty trucks make up only one-tenth of all vehicles on U.S. roads but are responsible for a quarter of all greenhouse gas emissions from human transportation.
Big-rig trucks alone account for over 25% of California’s diesel-related fine particle pollution and one-third of the state’s nitrogen oxide emissions, as per the California Air Resources Board. Aside from its environmental advantages, reducing these harmful emissions as planned will also enhance public health in California, with an expected savings of over $26 million attributed to decreased pollution-related illnesses.

How Will the New Law Be Implemented in California? The new law in California stipulates that all drayage trucks in the state must be zero-emissions by 2035, and new ones sold must be emission-free starting in 2024. School buses and garbage trucks must also be zero-emissions by 2027. Other vehicles that fall under the scope of the new law must be replaced with electric or hydrogen models by no later than 2042.