News & Analysis as of

Environmental Protection Agency (EPA) Clean Air Act

Holland & Knight LLP

President Trump Invokes National Security to Delay Mercury and Air Toxics Standards

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President Donald Trump's April 8, 2025, proclamation extends the compliance deadline for the EPA's Mercury and Air Toxics Standards (MATS) by two years, from July 8, 2027 to July 8, 2029, asserting national security concerns...more

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

Title V/Clean Air Act: Center for Biological Diversity Petition to Object Filed Addressing Weld County, Colorado Compressor...

The Center for Biological Diversity (“CBD”) filed an April 3rd Clean Air Act Title V Petition to Object (“Petition”) before the United States Environmental Protection Agency (“EPA”) related to DC Operating Company, LP for the...more

McGlinchey Stafford

Like A Good Neighbor…Not So Fast, Says 5th Circuit

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The U.S. 5th Circuit Court of Appeals gave a big win to the EPA when it upheld a Biden-era ozone ruling affecting Louisiana and Texas, but there was also a set-back for the EPA when the Court both upheld the ability of such...more

Williams Mullen

Exceptional Events Part of North Carolina Particulate Air Quality Attainment Designation

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Effective May 2024, EPA tightened the annual health-based National Ambient Air Quality  Standard (NAAQS) for fine particulate matter (PM2.5) from 12.0 µg/m3 to 9.0 µg/m3. This change was made after a review of the available...more

Williams Mullen

Environmental Notes - April 2025

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Under the Clean Air Act, sources frequently must undergo “New Source Review” (NSR) permitting, which is a pre-construction permitting program. NSR establishes requirements for new or modified sources prior to initiating...more

Williams Mullen

Frequently Asked Air Questions (FAAQs): Synthetic Minor Permits, One-Time Doubling & Sham Permits

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Under the Clean Air Act, sources frequently must undergo “New Source Review” (NSR) permitting, which is a pre-construction permitting program. NSR establishes requirements for new or modified sources prior to initiating...more

Pillsbury Winthrop Shaw Pittman LLP

EPA Announces Sweeping Deregulatory Agenda: The Complete Set of EPA’s 31 Actions and Affected Environmental Regulations

In what it called “the greatest and most consequential day of deregulation in U.S. history,” the Environmental Protection Agency (EPA) announced its most expansive deregulatory initiative to date on March 12, 2025. Through a...more

Holland & Knight LLP

Clean Air Act Rulemakings Don't Follow the Normal Rules – Just Ask the Supreme Court

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Every law student learns that the Administrative Procedure Act (APA) outlines the default rules for how federal agencies propose and finalize regulations and how courts review them. But for many significant actions under the...more

Goldberg Segalla

EPA Introduces New Email Account for Regulated Community to Request Presidential Exemption

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The Environmental Protection Agency announced March 12 it set up an e-mail account allowing the regulated community to request a presidential exemption under Section 112(i)(4) of the Clean Air Act (“CAA”)....more

Cozen O'Connor

EPA Chemical Accident Safety Rule Challenge Ignites AG Conflict

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Sixteen Democratic AGs and the Harris County Attorney (Houston, Texas) have filed a motion to intervene in a lawsuit brought by industry groups challenging the EPA’s denial of their petition for reconsideration of the...more

Verrill

Implications of Trump Executive Orders for Massachusetts Environmental Justice Programs 

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On the first day of his Presidency, among 26 other Executive Orders that day, Donald Trump issued his Unleashing American Energy Executive Order rescinding President Biden’s Executive Order 14096 of April 21, 2023...more

Hanson Bridgett

Trucks, Trains, and Automobiles: Untangling the Status of California’s Vehicle Emission Waivers

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Vehicle manufacturers and operators in California are no stranger to complex regulations, with the California Air Resources Board’s (CARB) history of pioneering mobile emission regulations. ...more

Womble Bond Dickinson

Nondelegation and Environmental Law - March 2025

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Last week, the Supreme Court held oral argument in Federal Communications Commission v. Consumers’ Research. The case addresses the Federal Communications Commission’s Universal Service Fund programs aimed at providing...more

Latham & Watkins LLP

EPA Issues Solicitation for Clean Air Act Section 112 Presidential Exemptions

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EPA’s electronic mailbox is open for requests from stationary sources until March 31. In March 2025, the United States Environmental Protection Agency (EPA) announced that it has set up an electronic mailbox to allow...more

Jones Day

EPA Puts "Holy Grail" of Climate Change in Crosshairs by Reconsidering Endangerment Finding and Other Regulations

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The U.S. Environmental Protection Agency ("EPA") announced an agenda to revisit numerous regulations addressing the emission of greenhouse gases ("GHGs")....more

Mintz - ML Strategies

Potential Fallout if Endangerment Finding Is Rescinded

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On March 13, the Environmental Protection Agency (EPA) announced it would move forward with reconsideration of the Greenhouse Gas Endangerment Finding (Endangerment Finding) as directed in President Trump’s Executive Order...more

DLA Piper

Industrials Regulatory News and Trends - March 2025

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Welcome to Industrials Regulatory News and Trends. In this regular bulletin, DLA Piper lawyers provide concise updates on key developments in the industrials sector to help you navigate the ever-changing business, legal, and...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

Hogan Lovells

Key takeaways from recent EPA announcements to reduce and reshape environmental regulation

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On March 12, 2025, EPA announced 31 intended actions by the agency in furtherance of the Administration’s goals of “Unleashing American Energy,” “Lowering the Cost of Living for American Families,” and “Advancing Cooperative...more

Beveridge & Diamond PC

Key Takeaways on Updated EPA Enforcement Priorities

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On the heels of its March 12 major announcement about 31 deregulatory actions, EPA also issued an important Memorandum honing the National Enforcement and Compliance Initiatives (NECI’s) adopted under the Biden administration...more

McGuireWoods LLP

EPA Announces Major Shift in Enforcement Priorities for Energy Sector

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On March 12, 2025, the Environmental Protection Agency’s (EPA) Office of Enforcement and Compliance Assurance (OECA) issued a memorandum titled “Implementing National Enforcement and Compliance Initiatives Consistently with...more

Goldberg Segalla

EPA Announces Rollbacks on 31 Environmental Provisions

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The new administrator of the Environmental Protection Agency, Lee Zeldin, announced March 12 the agency would be rolling back 31 key environmental provisions that regulate air pollution, water protections, and the energy...more

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

Title V/Clean Air Act: Harris County, Texas Petition to Object Filed Addressing Deer Park Chemical Manufacturing Facility

Harris County, Texas filed a March 10th Title V Petition to Object (“Petition”) before the United States Environmental Protection Agency (“EPA”) Administrator related to the Lubrizol Corporation’s Deer Park Plant (“Plant”)....more

Saul Ewing LLP

EPA Proposing Wide-Ranging Regulatory Revamp

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The Trump administration has declared March 12, 2025, as “the greatest and most consequential day of deregulation in the history of the United States.” United States Environmental Protection Agency Administrator, Lee Zeldin,...more

Vinson & Elkins LLP

Congress Has Disapproved the EPA’s Methane Tax Rule—What Happens Next?

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On March 14, 2025, President Trump signed legislation disapproving the Environmental Protection Agency’s regulation implementing the Inflation Reduction Act’s tax on methane emissions from the oil and gas sector. The Joint...more

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