Big rigs and buses made before 2010 are now banned from operating on California roadways.
The law, which went into effect on New Year’s Day, was part of a set of clean air regulations the California Air Resources Board passed nearly 15 years ago.
According to truck lobbying groups, the new law will prohibit about 10 percent of the commercial motor vehicles that are operating in the state.
“The rule applies to diesel vehicles that weigh at least 14,000 pounds. The air resources board said there are an estimated 200,000 vehicles that have yet to comply with the rule just days before the new year, including roughly 70,000 big rig trucks, or about 10% of the commercial motor vehicles operating in the state, according to trucking lobbying groups,” KCRA reports.