News & Analysis as of

Clean Air Act Trump Administration

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

Vorys, Sater, Seymour and Pease LLP

Trump Administration Proposes New Nationwide Permit for Data Centers and other Permitting Reforms

On July 23, the White House released “Winning the Race: America’s AI Action Plan,” (the "Plan") in response to President Trump’s January 23 Executive Order, “Removing Barriers to American Leadership in Artificial...more

Haynes Boone

EPA Proposes Repeal of Legal Foundation for Greenhouse Gas Rules

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The U.S. Environmental Protection Agency (EPA) has proposed a major shift in regulatory policy—to rescind the agency’s 2009 “Endangerment Finding” and to repeal all resulting emission standards for new motor vehicles and...more

Jones Day

EPA Initiates Rulemaking to Eliminate the 2009 GHG Endangerment Finding

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The U.S. Environmental Protection Agency ("EPA") proposes rescission of the 2009 Endangerment Finding, which underpins greenhouse gas regulation under the Clean Air Act....more

Hogan Lovells

EPA proposes reconsidering the 2009 GHG endangerment finding

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On July 30, 2025, the Environmental Protection Agency (EPA) issued a proposed rule to reconsider the 2009 Endangerment Finding that has served as the foundation for EPA's authority to regulate greenhouse gases (GHGs) for...more

ArentFox Schiff

Trump Administration Proposes Sweeping Environmental Regulatory Reforms to Accelerate US AI Infrastructure Development

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The Trump Administration has proposed implementing a broad range of regulatory changes in order to promote the development of artificial intelligence (AI) in the United States....more

Baker Botts L.L.P.

9 Questions About the 2009 Endangerment Finding Reconsideration (Updated with New Information from EPA Announcement on July 29,...

Baker Botts L.L.P. on

Over the course of the last 15 years, the U.S. Environmental Protection Agency (EPA) has developed a suite of regulations under the Clean Air Act (CAA) built upon EPA’s finding – originally made in 2009 – that greenhouse gas...more

Latham & Watkins LLP

A “Golden Age” of Data Center Dominance

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A new executive order seeks to streamline funding for and construction of data center projects by reducing regulatory red tape. On July 23, 2025, the Trump administration issued an executive order titled “Accelerating...more

Holland & Hart LLP

Summary of Trump Administration's Release of AI Action Plan

Holland & Hart LLP on

Earlier this week, President Trump signed an Executive Order as part of the release of his AI Action Plan entitled “Winning the AI Race: America’s AI Action Plan.” Led by White House AI and Crypto Czar, David Sacks, the...more

Akin Gump Strauss Hauer & Feld LLP

Regulatory Relief for Certain Stationary Sources to Promote American Chemical Manufacturing Security (Trump EO Tracker)

Grants a two-year exemption from compliance with the EPA’s HON Rule for 25 specified chemical manufacturing facilities. Extends implementation of new hazardous air pollutant standards under Section 112 of the Clean Air Act,...more

Foley Hoag LLP - Environmental Law

Superfund May Be Fundamentally Broken, But That Doesn't Mean that It Can't Be Improved

Because the risks posed by superfund sites pale in comparison to the risks posed by air pollution and broader water pollution issues regulated under the Clean Water Act, I have been and remain deeply skeptical of the Trump...more

K&L Gates LLP

EPA Plans Reset of GHG and Mercury Rules for Power Plants

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Introduction - Continuing the regulatory whiplash over greenhouse gases (GHG) emissions from power plants, the United States Environmental Protection Agency (EPA) recently proposed repealing the Biden administration’s GHG...more

Foley & Lardner LLP

Foley Automotive Update - June 2025 - 2

Foley & Lardner LLP on

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

McGlinchey Stafford

SCOTUS: Choose the Right Venue in Clean Air Act Issues

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On June 18th, the U.S. Supreme Court issued two rulings determining where challenges to Environmental Protection Agency (EPA) actions under the Clean Air Act must be filed. The Court held challenges to EPA actions that are...more

Foley Hoag LLP - Energy & Climate Counsel

EV Roundup - June 2025

The EV industry continues to face federal regulatory and political uncertainty and now, the clock is ticking on the Inflation Reduction Act’s electric vehicle (EV) tax credits and incentives. The recently proposed House and...more

Jones Day

EPA Proposes Repeal of 2024 Mercury and Air Toxics Standards Amendments

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On June 11, 2025, the U.S. Environmental Protection Agency ("EPA") announced a proposed rule to repeal key amendments to the 2024 Mercury and Air Toxics Standards ("MATS") for coal- and oil-fired electric utility steam...more

Benesch

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

Benesch on

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

Goldberg Segalla

New Proposed Rules Would Repeal Certain Regulations on Power Plants, Mercury and Air Toxics Standards

Goldberg Segalla on

The Trump administration is proposing two repeals: one on regulations of power plants and the other on certain amendments to the 2024 Mercury and Air Toxics Standards. The administration believes these regulations have...more

Jenner & Block

California Vehicle Waiver: Congressional Review Act Showdown

Jenner & Block on

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

Vinson & Elkins LLP

EPA Proposes to Repeal Biden-era Regulations Governing Air Toxic Emissions from Coal- and Oil-Fired Power Plants

Vinson & Elkins LLP on

On June 17, 2025, the U.S. Environmental Protection Agency (“EPA”) published a proposed rule to repeal the amendments to the Mercury and Air Toxics Standards (“MATS”) adopted by the Biden administration in 2024. These...more

Morgan Lewis

EPA Proposes Repeal of Greenhouse Gas Standards for Power Plants

Morgan Lewis on

The US Environmental Protection Agency recently issued a proposed rule and accompanying press release announcing its intent to repeal both the 2015 greenhouse gas emissions standards for new fossil fuel-fired power plants...more

Davis Wright Tremaine LLP

California Attempts To Catch a "Waive": State Leads 10 Others Suing Trump Administration Over Revocation of Vehicle Emission...

On June 12, President Trump signed three joint resolutions passed by Congress, ostensibly under the authority of the Congressional Review Act ("CRA"), to revoke three Clean Air Act waivers the Environmental Protection Agency...more

Latham & Watkins LLP

EPA Proposes Repeal of Power Plant GHG Emissions Standards

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If finalized, the rule would eliminate both Obama- and Biden-era limits on GHG emissions from fossil fuel-fired power plants. On June 11, 2025, the US Environmental Protection Agency (EPA) released a proposed rule under...more

Allen Matkins

California Environmental Law & Policy Update 6.13.25

Allen Matkins on

The U.S. Environmental Protection Agency (EPA) moved this Wednesday to erase limits on greenhouse gases from power plants and to weaken restrictions on other hazardous power plant emissions, including mercury, arsenic, and...more

Jones Day

Trump Paves Way for Coal Renaissance and Targets State Climate Change Efforts

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In early April, President Trump issued several energy-related presidential actions aimed at reviving the coal industry. These actions could boost the domestic coal industry, including by rolling back environmental regulations...more

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