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Waivers Clean Air Act

Foley & Lardner LLP

Foley Automotive Update - June 2025 - 2

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Foley & Lardner provided an update for multinational companies to mitigate risks posed by the Trump administration’s focus on drug cartels and transnational criminal organizations (TCOs). Visit Foley & Lardner’s Trump...more

Benesch

Trump’s Emissions Rollback: What Motor Carriers & Private Fleets Must Know

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President Trump took steps to dismantle California’s vehicle emissions standards on June 12, 2025, by signing three Congressional Review Act (“CRA”) resolutions revoking California’s waiver under the Clean Air Act. The waiver...more

Jenner & Block

California Vehicle Waiver: Congressional Review Act Showdown

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The Congressional Review Act (“CRA”), enacted in 1996, allows Congress to disapprove federal regulations promulgated by government agencies within 60 legislative working days after the rule is submitted to Congress. In order...more

Holland & Knight LLP

Up in the Air: Congress Nullifies Clean Air Act Waivers for California

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In the weeks since Holland & Knight previously reported on challenges to California's Clean Air Act (CAA) preemption waivers on April 30, 2025, Congress has taken decisive action. Following the U.S. House of Representatives'...more

Holland & Knight LLP

Up in the Air: Challenges to California's Clean Air Act Preemption Waiver

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When it comes to regulating motor vehicle emissions, California has long been different. California was the first state in the nation to enact tailpipe emission standards and as result of its "pioneering" efforts in the...more

Holland & Knight LLP

The Impact of a Trump EPA on California's Mobile Source Rules

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Under Clean Air Act (CAA) Section 209(a) (42 U.S.C. § 7543), states are preempted from adopting or enforcing emissions standards for new motor vehicles or new motor vehicle engines. However, because California had adopted its...more

Goldberg Segalla

SCOTUS Declines to Review EPA’s Authority on California’s Vehicle Emission Standards

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In a significant development for environmental law and state autonomy, the Supreme Court of the United States (SCOTUS) recently declined to review whether the U.S. Environmental Protection Agency (EPA) has the authority to...more

BakerHostetler

Regulating Automotive Emissions: Part II - The Future of California’s Emissions Waivers

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In November 2019, President-elect Donald Trump’s first administration’s withdrawal of California’s emissions waiver went into effect. ...more

BakerHostetler

Regulating Automotive Emissions: Part I - What to Expect Under the Second Trump Administration

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On the day of his inauguration, President Joe Biden issued a historic number of executive orders, several of which focused on overturning actions taken by the Trump Administration’s Environmental Protection Agency (EPA). We...more

King & Spalding

The Trifecta: What to Expect from a Second Trump Administration and a Republican Congress

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Republicans have swept the 2024 elections, returning Donald Trump to the White House as the 47th President and flipping the Senate to a Republican majority. Having narrowly maintained control of the House of Representatives,...more

Alston & Bird

California’s Advanced Clean Fleets Regulation Under Attack

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California’s ambitious zero-emission, heavy-duty truck regulations face new legal challenges. Our Environment, Land Use & Natural Resources Group outlines the status of California’s Advanced Clean Fleet (ACF) Regulation,...more

Foley & Lardner LLP

The Rubber Meets the Road on State and Federal Vehicle Emissions Strategies

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March and April have been busy months for vehicle emission regulation in the U.S. On March 20 and March 29 respectively, the U.S. Environmental Protection Agency (U.S. EPA) issued a set of final emission rules setting...more

Latham & Watkins LLP

CARB Finalizes Zero-Emission Auto Rules

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California continues to push toward its statewide carbon-neutrality goals. On August 25, 2022, the California Air Resources Board (CARB) unanimously approved regulations that require all new 2035 and later passenger...more

WilmerHale

States Target EPA’s Revival of California Clean Air Act Waiver

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On May 12, seventeen states filed a petition for review of EPA’s decision to reinstate California’s authority to set its own motor vehicle emissions standards. The petition was filed in the U.S. Court of Appeals for the D.C....more

ArentFox Schiff

EPA Restores California’s Clean Air Act Waiver, Allowing the State to Set Its Own Motor Vehicle Emissions Standards

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On March 9, 2022, the US Environmental Protection Agency (EPA) rescinded a rule promulgated by the Trump Administration and revived California’s Clean Air Act waiver, allowing the state to set its own greenhouse gas emissions...more

Morgan Lewis

Environmental Protection Agency Reinstates California Emissions Waiver

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In a move that was telegraphed at the outset of the Biden-Harris administration, the US Environmental Protection Agency announced March 9 that it is reversing a Trump-era decision to revoke California’s authority to set...more

Cozen O'Connor

Republican Attorneys General Oppose Reinstatement Of California’s Clean Air Act Waiver

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A group of 16 Republican AGs, led by Ohio AG Dave Yost, sent a comment letter to the U.S. Environmental Protection Agency (“EPA”) urging it to not reinstate California’s waiver under the Clean Air Act, which the letter argues...more

Foley Hoag LLP - Environmental Law

The Other Shoe Drops - EPA Formally Announces Its Reconsideration of the Withdrawal of the California Preemption Waiver

I noted in yesterday’s post about the NHTSA proposal to withdraw the SAFE I Rule that EPA was expected to follow the NHTSA action by restoring the Clean Air Act Section 209 waiver for California’s Advanced Clean Car program....more

Foley Hoag LLP - Environmental Law

The SAFE Rule Is On the Way Out - I Don’t Feel Any Less Safe

Last week, the National Highway Traffic Safety Administration proposed to withdraw Part I of the Trump Administration’s SAFE Rule, in which EPA had concluded that California’s regulation of motor vehicle GHG emissions was...more

Downey Brand LLP

California Air and Climate Vol 18: EPA Waiver to CARB Regarding “Non-Road” Diesel Engine Regulations Upheld; Phasing Out...

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Ninth Circuit Upholds U.S. EPA Waiver to CARB Regarding “Non-Road” Diesel Engine Regulations - On February 10, 2021, the U.S. Court of Appeals for the Ninth Circuit denied a challenge to the U.S. Environmental Protection...more

Foley & Lardner LLP

California’s Drive for Zero-Emission Vehicles Continues

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On September 23rd, Governor Gavin Newsom issued a precedent-setting executive order cementing California’s continued effort to take the lead on clean vehicle policy. Executive Order N-79-20 establishes as a goal that, where...more

Pillsbury Winthrop Shaw Pittman LLP

EPA-California Legal Showdown Looms Over Authority to Regulate Carbon

Multi-state coalition’s lawsuit challenges Trump EPA withdrawal of California Clean Air Act waiver. EPA formally announced its decision to withdraw California’s 2013 Clean Air Act waiver, which allowed the state to set its...more

Sheppard Mullin Richter & Hampton LLP

Politics Trumps Economics? Trump’s Revocation of California’s Waiver Under the Clean Air Act

Yesterday President Trump announced on Twitter that the U.S. was revoking California’s waiver under the Clean Air Act (CAA) which allowed it to impose stricter tailpipe emission standards than the federal ones. California’s...more

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