President Donald Trump announced Wednesday that his administration is revoking California's authority to set auto mileage standards stricter than those issued by federal regulators, a move critics said would result in less fuel-efficient cars that create more planet-warming pollution.
In a tweet, Trump said his action would result in less expensive, safer cars. He also predicted Americans would purchase more new cars, which would result in cleaner air as older models are taken off the roads.
"Many more cars will be produced under the new and uniform standard, meaning significantly more JOBS, JOBS, JOBS! Automakers should seize this opportunity because without this alternative to California, you will be out of business," Trump tweeted.
U.S. automakers contend that without year-over-year increases in fuel efficiency that align with global market realities their vehicles could be less competitive, potentially resulting in job losses. However, most of the industry favors increases in standards that are less than the Obama-era requirements, saying their consumers are gravitating to SUVs and trucks rather than buying more efficient cars.
Top California officials and environmental groups pledged legal action on Wednesday to stop the rollback, potentially tying up the issue for years in federal courts. The U.S. transportation sector is the nation's biggest single source of greenhouse gasses.
"You can't get serious about climate change unless you are serious about vehicle emissions, said California Gov. Gavin Newsom, a Democrat. "This is such a pivotal moment in the history of the climate change debate."
It's not clear yet what the Trump administration will propose as its final fuel-efficiency rules, but in the past it has favored freezing Obama-era mileage standards at 2021 levels. Under the Obama administration requirements, the fleet of new vehicles would have to average 30 mpg in real-world driving by 2021, rising to 36 mpg in 2025. Currently the standard is 26 mpg.
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Under Trump, the Environmental Protection Agency contends that freezing the fuel economy standards will reduce the average sticker price of new vehicles by about $2,700 by 2025, though that predicted savings is disputed by environmental groups and is more than double the EPA estimates from the prior administration.
Trump's tweet does not address the money consumers would save at the gas pump if cars got better mileage. A study released by Consumer Reports in August found that the owner of a 2026 vehicle will pay over $3,300 more for gasoline during the life of a vehicle if the standards are frozen at 2021 levels.
Trump's claim that his proposal would result in a cleaner environment is contrary to his own administration's estimate that by freezing economy standards U.S. fuel consumption would increase by about 500,000 barrels per day, a 2% to 3% increase. Environmental groups predict even more fuel consumed, resulting in higher pollution.
The administration argues that lower-cost vehicles would allow more people to buy new ones that are safer, cutting roadway deaths by 12,700 lives through the 2029 model year. But The Associated Press reported last year that internal EPA emails show senior career officials privately questioned the administration's calculations, saying the proposed freeze would actually modestly increase highway fatalities, by about 17 deaths annually.
Trump traveled to California for GOP fundraising events Tuesday and Wednesday near San Francisco, Los Angeles and San Diego.
California's authority to set its own, tougher emissions standards goes back to a waiver issued by Congress during passage of the Clean Air Act in 1970. In 2007, when Republican Arnold Schwarzenegger was governor, President George W. Bush's administration denied California's bid to place first-in-the-nation greenhouse gas limits on cars and trucks. But the state asked the EPA to reconsider its decision, and in 2009 — when Democratic President Barack Obama took office — the feds granted California's request.
California has 35 million registered vehicles, the most of any state. A dozen other states and the District of Columbia also follow California's fuel economy standards.
California Attorney General Xavier Becerra said the Trump administration's action will hurt both U.S. automakers and American families. He said California would fight the administration in federal court.
"You have no basis and no authority to pull this waiver," Becerra, a Democrat, said in a statement, referring to Trump. "We're ready to fight for a future that you seem unable to comprehend."
Trump's Justice Department recently opened an antitrust investigation into a deal between California and four major automakers for tougher pollution and related mileage requirements than those sought by the Trump administration.
The deal struck in July between California and four of the world's largest automakers — Ford, Honda, BMW and Volkswagen — bypassed the Trump administration's plan to freeze emissions and fuel economy standards adopted under Obama at 2021 levels.
The four automakers agreed with California to reduce emissions by 3.7% per year starting with the 2022 model year, through 2026. That compares with 4.7% yearly reductions through 2025 under the Obama standards. Emissions standards are closely linked with fuel economy requirements because vehicles pollute less if they burn fewer gallons of fuel.
In a speech to the National Automobile Dealers Association on Tuesday, EPA Administrator Andrew Wheeler, a former fossil fuels lobbyist, said California will be able to keep in place and enforce programs to address smog and other forms of air pollution caused by motor vehicles. But fuel economy has been one of the key regulatory tools the state has used to reduce harmful emissions.
Environmentalists and former EPA officials condemned the Trump administration's move, which comes as gasoline prices have crept higher following a weekend drone attack that hobbled Saudi Arabian oil output.
"If the courts allow this unprecedented reversal, and the Trump EPA massively rolls back the federal clean car standards, then President Trump will have done more to destroy the planet than any other president in history," said Jeff Alson, a former EPA senior environmental engineer and policy adviser who recently retired after 40 years at the agency.
CORRECTION(Sept. 19, 2019, 6:48 p.m. ET): This story has been corrected to fix the spelling of former EPA official Jeff Alson's last name.
Associated Press auto writer Tom Krisher contributed.