An 18-state coalition is backing the EPA in a legal action supporting California’s future strict emissions controls on medium- and heavy-duty trucks.

California’s five container ports have agreed to develop a $27 million, high-tech supply chain infrastructure using a computer cloud to share data and cargo flow information.

More than 80 contract drivers and dispatchers who handle deliveries for Amazon .com Inc. have joined the International Brotherhood of Teamsters.

The U.S. Environmental Protection Agency has granted California environmental regulators waivers to officially move forward with the agency’s aggressive plans to transition diesel trucks to electric vehicles and expand the length of truck warranties.

California Gov. Gavin Newsom said March 15 he wants state regulators to decide whether to impose the nation’s first penalty on oil companies for price gouging.

An exceptionally cold winter storm buffeting California brought snow to coastal hills that rarely see it, shut major highways near Los Angeles and Santa Cruz and knocked out power to more than 110,000 homes and businesses.

LOS ANGELES — Companies linked to two cargo ships accused of damaging a pipeline months before it ruptured have agreed to pay $45 million to settle lawsuits brought by business owners and residents.

SACRAMENTO, Calif. — As California regulators explore new rules to put self-driving semitrucks on the road, labor unions are rushing to the state Legislature to ask for a new law they say will protect their jobs.

Starting in 2023, Tesla will effectively be banned from advertising its vehicles as Full Self-Driving in California under a new law signed by Gov. Gavin Newsom.

California could become the first state to fine big oil companies for making too much money, a reaction to the industry’s supersized profits following a summer of record-high gas prices in the nation’s most populous state.