SACRAMENTO, Calif. — California pulled back its request on Tuesday for federal approval to enforce stricter emissions rules on diesel-powered trains and big rigs. The decision came just days before President-elect Donald Trump’s inauguration, as the state anticipated the incoming administration’s likely rejection of the proposal.
The California Air Resources Board (CARB) had approved two significant regulations in 2023 aimed at reducing emissions. One of the rules would have banned the sale of new diesel-powered semi-trucks in the state starting in 2036. These trucks are mainly used to transport goods through ports. The second rule targeted locomotive engines, calling for those older than 23 years to be phased out by 2030. It also aimed to increase the use of zero-emission technology for freight transportation across ports and railyards.
Liane Randolph, Chair of the Air Resources Board, said the agency is exploring alternative ways to reduce greenhouse gas emissions and improve air quality. However, she did not provide details on the next steps for these regulations.
“We are disappointed that the U.S. EPA could not act on all the requests in time, but this withdrawal is an important step given the uncertainty surrounding the incoming administration,” Randolph said. “This administration has previously opposed California’s programs aimed at protecting public health and the climate and has indicated that this stance will continue.”
The move underscores the challenges California faces in advancing its ambitious environmental policies under a federal government that has expressed opposition to state-level climate regulations.
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