California regulators withdrew a proposal to mandate the sale of zero-emissions trucks over the next 20 years on Tuesday evening. The California Air Resources Board (CARB) pulled back its request to the Environmental Protection Agency (EPA) for a waiver that would have allowed the state to require massive increases in sales of electric or zero-emissions truck models over the coming decades. As of 2023, only 0.3% of all registered heavy-duty vehicles in the U.S. were zero-emissions models, according to the International Council on Clean Transportation. CARB’s Advanced Clean Fleets rule would have mandated California’s truck fleet to move to zero-emission...