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Preemption Clean Air Act

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

Mintz

Pennsylvania State Court Dismisses Climate Tort Litigation Against Major Fossil Fuel Companies

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A local state court in Pennsylvania recently dismissed an array of climate tort claims brought against major fossil fuel companies by a local government--in this case, Bucks County. Among the three dozen or so climate tort...more

Holland & Knight LLP

An Update on Climate Superfund Laws and Climate Change Lawsuits

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In recent years, states and municipalities have attempted to hold fossil fuel companies liable for their alleged impacts on climate change. Numerous states and municipalities have sued fossil fuel companies, alleging that...more

Foley Hoag LLP - Energy & Climate Counsel

Trump Administration Sues Four States to Block Climate Superfund Legislation and Climate Deception Litigation

As we have noted previously, a number of states have enacted legislation and/or brought claims against fossil fuel producers seeking payment for damages resulting from climate change. Legislative efforts include New York...more

Vinson & Elkins LLP

Trump Administration Sues New York and Vermont Over Climate Superfund Legislation

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On May 1, 2025, the federal government brought separate suits against both New York and Vermont alleging that these state’s “climate Superfund” statutes are unconstitutional on multiple grounds. In two nearly identical...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

Pillsbury Winthrop Shaw Pittman LLP

The Battle Over Climate Superfund Laws: Legal Challenges in Vermont and New York

States are increasingly turning to “Climate Superfund” laws as a potential mechanism to offset the growing costs of climate-related disaster recovery and the construction of more climate change-resilient infrastructure. These...more

Foley Hoag LLP - Energy & Climate Counsel

Climate Litigation Against the US Is Dead. How Long Will State Climate Damage Cases Survive?

On Monday morning, the Supreme Court denied certiorari in Juliana v. United States. The cert. denial leaves in place the 9th Circuit Court of Appeals decision that ordered the case dismissed for lack of standing. At least for...more

Jenner & Block

Client Alert: New York Ushers in New Era of Climate Liability and Litigation with the Climate Change Superfund Act

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On February 6, 2025, twenty-two states and four energy industry organizations and businesses filed a lawsuit challenging New York’s “climate superfund” law. This law, signed on December 26, 2024 by New York Governor Kathy...more

Blank Rome LLP

SCOTUS Declines to Review California’s Clean Air Act Preemption Waiver—Current Implications and Expected Response from the...

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Update and Background - The U.S. Supreme Court, in Diamond Alternative Energy, LLC v. EPA, et al, recently declined to review whether the Environmental Protection Agency (“EPA”) exceeded its authority by granting a...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

Jones Day

Baltimore's Climate Change Lawsuit Dismissed

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In City of Baltimore v. BP, et al., court holds that nuisance and tort claims are preempted by federal law and beyond the limits of state law....more

Dorsey & Whitney LLP

The Supreme Court Update - June 27, 2024

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The Supreme Court of the United States issued four decisions today: Moyle v. United States; Idaho v. United States, Nos. 23-726, 23-727: After granting certioriari to decide whether the Emergency Medical Treatment and...more

Epstein Becker & Green

Another Leak Confirmed and Other Important Decisions and Divisions Issued, but Not Loper or Trump - SCOTUS Today

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The Supreme Court’s day started with the specter of yet another leak of a reproductive rights decision having occurred....more

Jenner & Block

Federal Preemption as a Vehicle to Supreme Court Review of Climate Change Cases

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On February 20, 2024, the City of Chicago sued defendant fossil fuel companies in Illinois state court, asserting state law claims, including nuisance, violations of consumer protection laws, and products liability. Chicago...more

Foley Hoag LLP - Environmental Law

The D.C. Circuit Affirms EPA’s Reinstatement of California’s Authority to Set Auto Emissions Limits; Don’t Get Too Excited About...

On Tuesday, in Ohio v. EPA, the D.C. Circuit Court of Appeals denied several challenges to EPA’s decision to restore California’s authority under § 209(b) of the Clean Air Act to regulate emissions from motor vehicles. It’s...more

Hogan Lovells

EPA proposes new Heavy-Duty GHG phase 3 emission standards for model years 2028-2032

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On April 12, 2023, the Environmental Protection Agency (EPA) issued a Notice of Proposed Rulemaking for “Greenhouse Gas Emissions Standards for Heavy-Duty Vehicles – Phase 3” (the Phase 3 proposed rule or NPRM), establishing...more

Latham & Watkins LLP

US Warehouse Regulation Lawsuit Reaches Critical Stage

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A federal court heard motions for summary judgment in challenge to first-in-nation rule requiring warehouses to adopt clean technologies. By Joshua Bledsoe, Nick Cox, and Jennifer Garlock On April 17, 2023, a US federal judge...more

Hogan Lovells

EPA grants two of three preemption waivers for CARB heavy-duty vehicle and engine regulations

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What is the significance of EPA’s March 30, 2023 Notice of Decision (pre-publication) granting two separate requests for waivers of Clean Air Act (“CAA”) preemption for California Air Resources Board (“CARB”) regulations...more

Jones Day

States and Industry Groups Challenge California's Regulation of Vehicular Greenhouse Gas Emissions

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Ohio et al. v. EPA, No. 22-1081, currently being briefed in the U.S. Court of Appeals for the D.C. Circuit, presents significant issues about the scope of federal and state sovereignty, the resolution of which could have...more

Hicks Johnson

Appellate Courts Provide Guidance on Jurisdiction for Climate Change Lawsuits

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The U.S. Court of Appeals for the Tenth Circuit ruled in February 2022 that federal jurisdiction did not exist over a case brought by a group of Colorado municipalities accusing several energy companies of climate...more

Hogan Lovells

EPA Decision Reinstating California's Clean Air Act Waiver for GHG/ZEV

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Today the U.S. Environmental Protection Agency (EPA) published its Notice of Decision in the Federal Register to rescind EPA’s 2019 withdrawal of California’s waiver of preemption under Section 209 of the Clean Air Act (CAA)...more

Hicks Johnson

Tenth Circuit Provides Guidance on Jurisdiction for Climate Change Lawsuits

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On Tuesday, February 8, the U.S. Court of Appeals for the Tenth Circuit laid down a ruling in a lawsuit brought by a group of Colorado municipalities accusing several energy companies of climate change-related harm. Alleging...more

Foley Hoag LLP - Environmental Law

State Law Climate Damage Cases (Still) Belong in State Court

In the first appellate decision to decide the issue since the Supreme Court decision in BP P.L.C. v. Mayor & City Council of Baltimore, the 10th Circuit ruled this week that climate damage claims brought by several Colorado...more

King & Spalding

Second Circuit Climate Change Ruling Affirms Dismissal of State-law Claims

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In the past four years, state attorneys general or municipalities have brought 21 lawsuits based on state-law claims (e.g., nuisance, trespass, consumer fraud) seeking to hold fossil fuel companies liable for costs allegedly...more

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