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The U.S. average retail price of diesel rose 1.3 cents to $3.055 a gallon, the Department of Energy reported July 8. Crude slid to less than $58 a barrel, then rebounded later in the week to just above $60.

Wrapping up an investigation begun four years ago, the California Air Resources Board announced July 1 it fined brewing company Anheuser-Busch $500,000 for medium- and heavy-duty trucks that violated the state’s air pollution laws.

The White House is rejecting a bid from domestic and foreign automakers to restart talks with California over vehicle emissions regulations.

Research from the staff of the California Air Resources Board concludes that the regulatory agency’s call for significant reductions in nitrogen oxide emissions are “technically achievable and cost-effective” for model year 2024 heavy trucks.

California environmental regulators are working on a plan to speed up the deployment of electric medium- and heavy-duty trucks operating on the state’s streets and highways.

A review conducted by the San Diego Union-Tribune showed various state agencies have committed $2.46 billion in public funds — some of it already spent and the rest planned over a number of years — for programs aimed at luring drivers out of cars and trucks powered by internal combustion engines and encouraging them into zero- or low-emission vehicles.

California environmental regulators are scheduled next month to consider changes that would toughen state standards on smoke opacity as well as require motor carriers with two or more trucks to report to the agency the results from an annual smoke self-test.

The California Air Resources Board approved a $663 million clean transportation plan Dec. 14 in an effort to increase the use of environmentally friendly trucks, buses and cars.