Californian truck and engine manufacturers said that they had reached an agreement about the state's emission rules.

that will improve organisations' capacity to satisfy criteria.

The U.S. Environmental Protection Agency (EPA) approved California's plans to demand an increasing number of zero-emission heavy-duty vehicles in March.

Gavin Newsom, the governor of California, predicted the result: "By 2035, half of all heavy duty trucks sold in CA will be electric."

By 2027, the legislation will be in compliance with the EPA's nitrogen oxide emission regulations, according to CARB.

The board also resolved to wait three years of regulatory stability and a minimum of four years before enforcing new criteria.

According to EPA, it "looks forward to reviewing the details of this agreement" and that it is pleased with the news.

California intends to mandate zero-emission operations for all medium- and heavy-duty vehicle fleets by the year 2045.