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Proposed Rules Environmental Protection Agency (EPA) Trump Administration

Jackson Walker

EPA Proposes Rollback of Climate and Power Plant Regulations

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The Environmental Protection Agency (EPA) has launched a regulatory rollback campaign implementing President Trump’s energy and deregulatory agenda. These proposed actions represent a fundamental shift toward policies...more

Bergeson & Campbell, P.C.

EPA Submits Draft Proposed Risk Evaluation Framework Rule to OMB for Review

On August 4, 2025, the U.S. Environmental Protection Agency (EPA) submitted to the Office of Management and Budget (OMB) a proposed rule entitled “Further Reconsideration of Procedures for Chemical Risk Evaluation Under the...more

Holland & Knight LLP

Up in the Air: EPA Opens Comment on Repealing Endangerment Finding, Motor Vehicle GHG Rules

Holland & Knight LLP on

The U.S. Environmental Protection Agency (EPA) on Aug. 1, 2025, published a proposal to repeal all greenhouse gas (GHG) emission standards for light-duty, medium-duty, and heavy-duty vehicles and engines from model year 2012...more

Brownstein Hyatt Farber Schreck

EPA Moves to Rescind 2009 Endangerment Finding

On July 29, the Environmental Protection Agency (EPA) formally proposed to revoke its 2009 “Endangerment Finding,” in which the EPA declared that greenhouse gases contribute to air pollution and endanger public health. This...more

ArentFox Schiff

EPA Proposes Repeal of 2009 Endangerment Finding Impacting Greenhouse Gas Regulations

ArentFox Schiff on

On July 29, the US Environmental Protection Agency (EPA) announced a proposal to rescind its 2009 Endangerment Finding....more

DLA Piper

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

DLA Piper on

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

Haynes Boone

EPA Proposes Repeal of Legal Foundation for Greenhouse Gas Rules

Haynes Boone on

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

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

Nossaman LLP

What’s Up With WOTUS?

Nossaman LLP on

The intricacies of the Waters of the U.S. (WOTUS) definition continue to evolve, especially with recent changes initiated under the Trump administration and landmark clarifications from the Supreme Court's Sackett v. EPA...more

K&L Gates LLP

EPA Plans Reset of GHG and Mercury Rules for Power Plants

K&L Gates LLP on

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

Jones Day

EPA Proposes Repeal of 2024 Mercury and Air Toxics Standards Amendments

Jones Day on

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

Holland & Knight LLP

EPA Proposes 2026-2027 Renewable Fuel Standard Volume Mandates

Holland & Knight LLP on

The U.S. Environmental Protection Agency (EPA) on June 13, 2025, issued a proposed rule, "Renewable Fuel Standard (RFS) Program: Standards for 2026 and 2027, Partial Waiver of 2025 Cellulosic Biofuel Volume Requirement, and...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

Vinson & Elkins LLP

EPA Aims to Boost Biofuels Production in Proposed RFS Set 2 Rule

Vinson & Elkins LLP on

On June 17, 2025, the U.S. Environmental Protection Agency (“EPA”) published its proposed “Set 2” rule under the Renewable Fuel Standard (“RFS”) program (the “Set 2 Rule”). The Set 2 Rule proposes renewable volume obligations...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

Latham & Watkins LLP

EPA Proposes Repeal of Power Plant GHG Emissions Standards

Latham & Watkins LLP on

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

Beveridge & Diamond PC

EPA’s Path Forward on TSCA Becomes Clearer

After a period of uncertainty, how the U.S. Environmental Protection Agency (EPA) plans to revise its implementation of the Toxic Substances Control Act (TSCA) during the second Trump administration is coming into focus...more

Williams Mullen

Trump EPA Rolling Back Certain PFAS Limits in Drinking Water

Williams Mullen on

On May 14, 2025, EPA announced it will rescind and reconsider regulations setting maximum contaminant levels (MCLs) in drinking water for shorter chain per- and polyfluoroalkyl substances (PFAS) and extend the deadlines for...more

DLA Piper

EPA Signals Intention to Modify Biden Administration’s National Primary Drinking Water Regulation for PFAS

DLA Piper on

In response to public feedback on compliance challenges, the US Environmental Protection Agency (EPA) recently announced its intention to modify the National Primary Drinking Water Regulation (NPDWR) for six per- and...more

DLA Piper

EPA Announces Vision for PFAS Policy and Commences Rulemaking Activity

DLA Piper on

In late April, US Environmental Protection Agency (EPA) Administrator Lee Zeldin issued a press release announcing EPA’s anticipated policy platform for addressing per- and polyfluoroalkyl substances (PFAS) in the...more

Troutman Pepper Locke

PFAS Regulatory Landscape Update — The Message? Stay Tuned.

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The Environmental Protection Agency (EPA) has announced several actions in recent weeks that shed light on the Trump administration’s approach to PFAS regulation....more

McGuireWoods LLP

Contaminants Compass: April 2025 Special Edition

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“Contaminants Compass” is a monthly newsletter that provides updates, legal observations and actionable tips to navigate the evolving legal challenges of per- and polyfluoroalkyl substances (PFAS)....more

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