WASHINGTON — The Trump administration is moving forward with a proposal to revoke part of California’s authority to set its own automobile gas mileage standards, a government official said Thursday, confronting a state that has repeatedly challenged the administration’s environmental rollbacks.
The Environmental Protection Agency was preparing paperwork for the White House for the move, meant to help the administration set a single, less rigorous mileage standard enforceable nationwide, according to the official, who is familiar with the regulatory process and spoke on condition of anonymity because the plan has not been made public.
President Donald Trump has pushed for months to weaken Obama-era mileage standards nationwide and has targeted California’s decades-old power to set its own mileage standards as part of that effort.
Administration moves to rescind authority granted by Congress probably would end up in court. When President George W. Bush challenged California’s greenhouse gas emissions and mileage-setting ability, California fought it. The Obama administration subsequently dropped the Bush effort.
The Trump plan would have to be posted in the Federal Register and would be subject to public comment.
His administration has tried to ease or remove scores of environmental regulations it sees as unnecessary and burdensome. The tougher mileage standards were a key part of the Obama administration’s efforts to reduce climate-changing fossil fuel emissions.
California has sued the Trump administration 27 times on environmental matters alone, often as part of a group of states. Counting preliminary injunctions, California has won in court 19 times, said Sarah Lovenheim, a spokeswoman for California Attorney General Xavier Becerra.
Becerra, a Democrat, made clear his state would battle this move as well. “California will continue its advance toward a cleaner future. We’re prepared to defend the standards that make that promise a reality,” he said in a statement.
EPA officials did not respond to a request for comment Thursday.
The mileage move would target California’s half-century-old authority under the Clean Air Act to set its own, tough tailpipe emission standards, which are closely linked to fuel efficiency.
California’s long struggles with smog mean the state has been setting its own standards since before the 1970 law was written. Congress allowed California to seek waivers from the national standards for that reason.
About a dozen states have opted to follow California’s pollution and mileage standards.
The waiver has allowed California, the state with the highest population and by far the biggest economy, to steer the rest of the nation toward cutting down on car and truck emissions that pollute the air and alter the climate.
