News & Analysis as of

West Virginia v EPA Clean Air Act Greenhouse Gas Emissions

DLA Piper

EPA Proposes to Rescind Landmark Greenhouse Gas Endangerment Finding and Eliminate Mobile Source Emissions Standards for GHGs

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Today, August 1, 2025, the US Environmental Protection Agency (EPA) published a controversial proposed rule that, if finalized, would rescind the agency’s landmark 2009 determination that greenhouse gas (GHG) emissions from...more

MG+M The Law Firm

EPA Moves to Repeal Biden–Harris-Era Power Plant Emissions Rules

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On June 11, 2025, the US Environmental Protection Agency, under Administrator Lee Zeldin, proposed repealing two key Biden–Harris-era rules targeting greenhouse gas and air toxic emissions from fossil fuel–fired power plants....more

Brownstein Hyatt Farber Schreck

Third Time’s the Charm?

EPA Again Proposes to Regulate Greenhouse Gas Emissions from Power Plants - Today, the Environmental Protection Agency (EPA) published new proposed rules in the Federal Register to regulate greenhouse gas (GHG) emissions...more

Holland & Hart LLP

GHG Standards for the Power Sector: Is Third Time the Charm or Is It Déjà Vu?

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In the third attempt in less than 10 years, the Environmental Protection Agency issued a proposed rule package (“Proposal”) that would apply strict greenhouse gas emissions standards to the fossil fuel-fired power sector. The...more

ArentFox Schiff

EPA’s FY2024 Budget Request Emphasizes Continued Focus on Climate, Environmental Justice, and Infrastructure

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Executive branch priorities are clearly set out in agency budget requests. While the amount budgeted generally changes when Congress has its say, the original request provides unique insight into how agencies perceive what...more

Skadden, Arps, Slate, Meagher & Flom LLP

West Virginia v. EPA: Implications for Climate Change and Beyond

Key Points - The U.S. Supreme Court’s decision in West Virginia v. EPA limits the EPA’s options for regulating greenhouse gas emissions, but the agency can still pursue emission reductions at individual power plants and other...more

BakerHostetler

West Virginia v. EPA: What This Means for Federal Agency Rulemaking Going Forward

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​​​​​​​The U.S. Supreme Court’s decision in West Virginia v. EPA has received much press as a decision that limits regulations designed to address climate change. But in reality, it was not so much an environmental law case...more

Jones Day

U.S. Supreme Court Limits How EPA Can Regulate Greenhouse Gases

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In West Virginia v. EPA, a case argued by Jones Day, the U.S. Supreme Court determined that Congress did not authorize the U.S. Environmental Protection Agency ("EPA") to compel generation shifting among existing electric...more

Mitchell, Williams, Selig, Gates & Woodyard,...

Greenhouse Gas Emissions/Clean Air Act: Eight State Attorney Generals Request that EPA Establish a National Ambient Air Quality...

A group of state and territorial attorneys general sent a July 28th letter to United States Environmental Protection Agency (“EPA”) Administrator Michael Regan asking that a Clean Air Act National Ambient Air Quality Standard...more

BCLP

U.S. Supreme Court Upends Federal Climate Regulation, and Much More

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On June 30, 2022, the United States Supreme Court handed down its opinion in West Virginia v. Environmental Protection Agency, holding by a 6-3 majority that the U.S. Environmental Protection Agency (“EPA”) overstepped its...more

Proskauer Rose LLP

The Supreme Court Limits EPA’s Authority to Regulate Greenhouse Gas Emissions

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On June 30, 2022, the Supreme Court of the United States issued an important environmental ruling in West Virginia v. EPA, holding that while the United States Environmental Protection Agency (“EPA”) can regulate power plant...more

Hogan Lovells

Summary of West Virginia v. EPA and its potential impact on NRC and other federal agencies

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In a recent decision that could have wide-ranging implications, the U.S. Supreme Court in West Virginia v. Environmental Protection Agency found that the Environmental Protection Agency (EPA) had overstepped its authority in...more

Holland & Hart LLP

The Future of Federal Agency Rulemakings After West Virginia v. Environmental Protection Agency

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The US Supreme Court’s 6-3 decision in West Virginia v. EPA, 597 US ___ (2022), narrowly defined the scope of the Environmental Protection Agency’s (EPA) statutory authority to regulate greenhouse gas emissions from...more

Perkins Coie

West Virginia v. EPA Curtails Federal Climate Action

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The U.S. Supreme Court’s recent decision in West Virginia v. Environmental Protection Agency (EPA) curtailed the agency’s authority to regulate emissions from power plants through rules shifting electricity generation from...more

Lippes Mathias LLP

SCOTUS Limits EPA’s Authority to Regulate Greenhouse Gas Emissions in West Virginia v. EPA

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On June 30, 2022, the U.S. Supreme Court published its opinion in West Virginia v. Environmental Protection Agency (EPA), involving challenges to the scope of the Obama Administration's Clean Power Plan (CPP). The Court...more

Troutman Pepper Locke

Supreme Court Claims “Unprecedented” Administrative Reach to Strike Down Sector Based Curtailment of Power Plant GHG Emissions

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On June 30, 2022 the Supreme Court decided West Virginia v. EPA. This case not only has environmental law implications, but also speaks directly to executive agency overreach in potentially many other contexts. On its face,...more

Jones Day

U.S. Supreme Court Curbs Executive Power and Reach of EPA

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What Happened: West Virginia v. EPA - In West Virginia v. EPA, the Supreme Court ruled in favor of Jones Day client, the North American Coal Corporation, and determined that the EPA did not have clear authorization from...more

Baker Donelson

Supreme Court Invokes Major Questions Doctrine to Curb EPA's Ability to Regulate Carbon Emissions

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On June 30, 2022, the Supreme Court held that the U. S. Environmental Protection Agency (EPA) does not have the authority under the Clean Air Act (CAA) to promulgate a program requiring power plants to shift away from coal to...more

Herbert Smith Freehills Kramer

Supreme Court Rejects EPA’s ‘Clean Power Plan’ in Decision Raising Questions About the SEC’s Climate-Related Disclosure Rules

On June 30, 2022, the U.S. Supreme Court held in West Virginia v. Environmental Protection Agency, 597 U.S. ___ (2022), that the Clean Air Act did not clearly authorize the Environmental Protection Agency (EPA) to create the...more

WilmerHale

Major Decision on Major Questions Doctrine, Agency Regulatory Discretion

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The Clean Power Plan is a program developed by the Environmental Protection Agency to reduce greenhouse gas emissions by forcing electric power generation to shift from coal-fired plants to renewable sources, such as wind and...more

Spilman Thomas & Battle, PLLC

Currents - Energy Industry Insights: Issue 7, 2022

The Supreme Court’s EPA Ruling is a Big Setback for Fighting Climate Change, but Not a Death Knell "The ruling opens the door to more litigation, however, which could help the fossil fuel industry delay moves to...more

Akin Gump Strauss Hauer & Feld LLP

‘Major Questions’? Supreme Court Decision in Climate Change Case Sends Ripples Across the Regulatory Landscape

Key Points- For the first time, the Supreme Court has invoked explicitly the “major questions doctrine”—which requires Congress to speak clearly when authorizing agency action in certain extraordinary cases—to strike...more

WilmerHale

Supreme Court on Climate: West Virginia v. EPA

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In one of the most significant environmental opinions of our time, the Supreme Court held in West Virginia v. EPA that Section 111(d) of the Clean Air Act does not give the Environmental Protection Agency (EPA) authority to...more

Wilson Sonsini Goodrich & Rosati

System Failure: The U.S. Supreme Court Fails to Dim the Climate Innovation Sector’s Bright Light

The U.S. is a textbook innovation economy. Exceptional dynamism—intellectual and financial—has driven the country's sustainability sector, and with it domestic and global economic development. The current industrial...more

Orrick, Herrington & Sutcliffe LLP

W. VA. v. EPA: Supreme Court Overturns EPA’s Inconsequential Clean Power Plan

On June 30, 2022, the United States Supreme Court issued its long-awaited decision in West Virginia et al. v. Environmental Protection Agency et al., which invalidated the Clean Power Plan (“CPP”), an Obama-era regulation...more

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