By Elsie Kamsiyochi
LOS ANGELES — America’s auto industry is being pulled in opposite directions as a high-stakes legal battle between President Donald Trump and California reaches a critical point, threatening to reshape the future of electric vehicles (EVs), emissions standards, and billions of dollars in automotive investment.
At the heart of the dispute is California’s long-standing authority to set its own vehicle emissions rules — authority the state says congressional Republicans, backed by the Trump administration, stripped away illegally.
If California prevails in court, automakers could be forced to comply with two fundamentally conflicting regulatory regimes: a federal government hostile to EV mandates and a California-led coalition aggressively pushing toward zero-emission vehicles.
The outcome has sweeping implications not only for EV pioneers like Tesla, but also for traditional automakers that still rely heavily on gasoline-powered cars and trucks.
A Legal Fight with Industry-Wide Consequences
California’s lawsuit challenges what legal experts describe as an unprecedented maneuver by Congress to invalidate a federal waiver that allows the state to impose stricter pollution limits than the rest of the country.
That waiver underpins California’s ambitious plan to require that all new vehicles sold in the state be zero-emission by 2035, with steep interim targets beginning this year.
Eleven other states — together representing nearly 30% of U.S. new-vehicle sales — have adopted California’s standards, dramatically raising the stakes for automakers nationwide.
The Trump administration has moved sharply in the opposite direction. Since returning to office, Trump has dismantled federal incentives for EV adoption, scrapped a $7,500 tax credit for electric vehicles, and eliminated penalties for automakers that miss fuel-efficiency targets.
The administration’s Environmental Protection Agency has also overturned a foundational Obama-era finding that greenhouse gas emissions endanger human health — the scientific basis for federal vehicle pollution rules dating back to 2010.
California argues that ending its waiver is essential to Trump’s anti-EV strategy, but says the method used to do so violates decades of precedent and federal law. The state’s case is set to be tested Thursday at a federal court hearing in Oakland, where the administration has asked a judge to dismiss the lawsuit outright.
Two Rulebooks, One Industry
If the Trump administration wins, traditional automakers would face less pressure to sell EVs in California and the states that follow its rules — a relief for companies struggling with slower-than-expected consumer demand and rising costs. Tesla and other EV-focused manufacturers, however, could lose a crucial revenue stream from selling regulatory credits to automakers that rely on them to meet emissions requirements.
If California wins, the consequences could be even more complex. Automakers might have to design and manufacture separate vehicle lineups for different parts of the United States — one aligned with California’s pro-EV framework and another tailored to looser federal standards.
The Alliance for Automotive Innovation, which represents major carmakers, warns that such a split would reduce consumer choice and inflate costs. The group has described California’s rules as an “unaccountable, unachievable regulatory wormhole.”
Mike Murphy, a former Republican strategist and co-founder of EVs for All America, said automakers are being “whipsawed” by political volatility.
“What I hear from all of them is, ‘This short-termism is killing us,’” Murphy said. Since Trump’s re-election, automakers have recorded roughly $55 billion in writedowns on EV investments. “We have a monkey at the controls in Washington, and it’s very hard to plan.”
The White House dismissed California’s lawsuit as “frivolous.” Spokeswoman Taylor Rogers said Trump has canceled “unpopular green-energy subsidies that wasted Americans’ hard-earned tax dollars.”
Roots in California’s Smog Crisis
California’s unique authority dates back to the 1950s, when severe smog blanketed Los Angeles and other urban centers. Recognizing the state’s distinct air-quality challenges, Congress preserved California’s power to regulate vehicle emissions under the 1967 Air Quality Act, allowing the EPA to grant waivers for tougher rules.
For decades, administrations of both parties approved those waivers — more than 100 in total. During Trump’s first term, his EPA attempted to roll back part of California’s authority through a formal rulemaking process, which California challenged in court. The Biden administration restored the waiver in 2022.
In Trump’s second term, Republicans opted for a faster route, invoking the Congressional Review Act to nullify the waiver entirely.
The Government Accountability Office had already concluded that California waivers are not “rules” subject to the act, calling them case-specific determinations. Congress moved ahead anyway, prompting California to sue the same day Trump signed the legislation last June.
California Attorney General Rob Bonta said the case reflects what he called the administration’s “contempt for the law” and reliance on fringe legal theories.
“They were told. They knew. They did it anyway,” Bonta said, warning that the move dangerously expands congressional power.
The EPA countered that California’s regulations would have “crippled American industry” and driven up car prices, arguing that Congress has ultimate authority to define the law.
Automakers Left in Limbo
Legal analysts say the dispute is venturing into largely uncharted territory, leaving companies with little guidance on how courts may rule.
“The level of instability and confusion here is unprecedented,” said Paul Libus, a vehicle-emissions policy attorney at Van Ness Feldman LLP.
California’s California Air Resources Board has told automakers they can temporarily choose whether to comply with its new standards — but warned that penalties could follow retroactively if the state wins. Many manufacturers, wary of long-term risk, are choosing to comply anyway.
Even so, California faces its own challenges. EVs accounted for 21% of new-car sales in the state last year, slightly down from the year before, raising doubts about whether the aggressive targets are achievable amid cooling consumer demand. CARB has already said it will not enforce this year’s EV sales targets while the legal uncertainty persists.
Murphy believes automakers will ultimately hedge their bets by continuing to work with California regulators. Global markets such as China and Europe are tightening emissions rules, making EV investment unavoidable in the long run.
“They know this drunken holiday with the federal regs is probably not going to last,” he said.
As the courtroom battle unfolds, U.S. automakers remain stuck between two powerful political forces — uncertain which rulebook will define their future, but keenly aware that the decision could shape the industry for decades to come.
Source: Reuters
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