Podcast - Diamond Alternative Energy, LLC v. EPA: The Intersection of Constitutional and Environmental Law
SCOTUS Clean Air Act Cases: What’s New?
Unpacking California's 2024 Zero Emission Fleet Mandate
West Virginia vs. EPA Part II: U.S. Supreme Court Applies the Major Questions Doctrine to limit EPA Regulatory Authority
[Webinar] Growing Greener: Navigating Environmental Laws in the Cannabis Industry
Nota Bene Episode 101: Catching up with Global Climate Regulation with Nico van Aelstyn
Schoenbrod: SCOTUS Ruling Helps EPA Deal With a "Stupid Statute"
Law Prof: The Clean Air Act Needs a Reboot
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
On July 29, the US Environmental Protection Agency (EPA) announced a proposal to rescind its 2009 Endangerment Finding....more
Key Takeaways - What Happened? On July 29, 2025, the U.S. Environmental Protection Agency (EPA) published a proposed rule to rescind the 2009 Greenhouse Gas (GHG) Endangerment Finding (“Endangerment and Cause or Contribute...more
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
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
The U.S. Environmental Protection Agency (EPA) proposes to eliminate greenhouse gas regulations for power plants after concluding that power plants do not "contribute significantly" to dangerous air pollution or,...more
On June 11, 2025, the U.S. Environmental Protection Agency ("EPA") issued a proposed rule to repeal all greenhouse gas ("GHG") emissions standards for fossil fuel-fired electric generating units ("EGUs") under § 111 of the...more
EPA’s long-promised rules for reducing CO2 emissions from fossil fuel-fired power plants have now been published. In the proposal, EPA lays out “performance standards” for new natural gas-fired power plants and “emission...more
On April 12, 2023, the Environmental Protection Agency (EPA) issued the notice of proposed rulemaking for “Multi-Pollutant Emission Standards for Model Years 2027 and Later Light-Duty and Medium-Duty Vehicles” (the “proposed...more
On October 14, 2022, the United States Environmental Protection Agency (USEPA) published proposed revisions to the Clean Air Act’s New Source Review (NSR) permitting regulations. The proposal seeks to repeal specific 2008...more
After years of attempts with varying success to regulate methane emissions from new oil and gas wells, the Biden administration has shifted strategy in proposing a regulatory program covering both new and existing oil and...more
On November 2, 2021, the U.S. Environmental Protection Agency (“EPA”) issued a proposed rule that is intended to significantly reduce emissions of greenhouse gases (“GHGs”) and other air pollutants from the crude oil and...more
The Arkansas Department of Environmental Quality (“ADEQ”) submitted October 31st comments to the United States Environmental Protection Agency (“EPA”) on its proposed rule: Emission Guidelines for Greenhouse Gas Emissions...more
Introduction - As we have previously reported, on August 21, 2018, the U.S. Environmental Protection Agency (“EPA”) proposed to replace the Obama Administration’s Clean Power Plan (“CPP”) with the Affordable Clean Energy...more
Outlined in an Environmental Protection Agency ("EPA") proposal published on August 31, 2018, the Affordable Clean Energy ("ACE") rule would replace the Obama Administration's Clean Power Plan ("CPP"). A 60-day public comment...more
Earlier this week, on August 21, President Trump’s Environmental Protection Agency (“EPA”) proposed a rule pursuant to Section 111(d) of the Clean Air Act (“CAA”) intended to replace the embattled Clean Power Plan (“CPP”)...more
The U.S. Environmental Protection Agency (EPA) released an Advanced Notice of Proposed Rulemaking (ANPR) on Dec. 18, 2017, soliciting comments on its intention to propose a replacement rule for the Clean Power Plan (CPP). The...more
EPA recently proposed revisions to its Prevention of Significant Deterioration (“PSD”) and Title V regulations that will impact the permitting of greenhouse gases (“GHGs”). These regulatory changes are being proposed to...more
A 2015 EPA rulemaking required 36 states to revise their State Implementation Plans (“SIPs”) to eliminate provisions exempting air emission exceedances during periods of startup, shutdown, or malfunction (the “SSM SIP Call...more
On May 31, 2016, the Environmental Protection Agency (EPA) published in the Federal Register its proposed 2017 volumes under the Renewable Fuel Standard (RFS), an ever-controversial program established by Congress to spur the...more
As the electric power industry considers the options for compliance with an unprecedented suite of new environmental requirements, it faces continued uncertainty as to the fate of some of the most significant new regulations....more