West Virginia vs. EPA Part II: U.S. Supreme Court Applies the Major Questions Doctrine to limit EPA Regulatory Authority
West Virginia vs. EPA: An Environmental Regulations Case with Broad Implications for Agency Power
Jones Day Talks: Developments in Germany's Wind Power Regulations
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
Two weeks ago, the Environmental Protection Agency (EPA) released its proposed repeal of the rules governing greenhouse gas emissions from fossil fuel-fired power plants. Included within the proposal is a new legal...more
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
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
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
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
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
On June 17, 2025, the U.S. Environmental Protection Agency (“EPA”) published a proposed rule that, if finalized, would repeal all greenhouse gas (“GHG”) standards for the power sector. Further, the principles underlying the...more
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
EPA is attempting to use the Clean Air Act (CAA) to immediately shut down a Louisiana manufacturer that is indisputably in compliance with the emissions limits in its state issued air permit. In its emergency request to a...more
EPA’s long-awaited proposal would set aggressive emission reduction targets with many different approaches and timelines to achieve them. On May 11, 2023, the US Environmental Protection Agency (EPA) released its...more
After weeks of hints and leaks, yesterday morning (May 11, 2023), EPA proposed a new rule regulating emissions from power plants. The proposed rule would apply to new and existing gas plants and existing coal plants—new coal...more
EPA’s latest proposed rule targeting NOx emissions from fossil-fueled electric generating units (EGUs) is a classic study of diminishing returns. It marks the seventh round of NOx controls for the EGU sector since 1990. The...more
Appeals court halts ruling blocking Biden climate metric - The Hill - March 16 - The Fifth Circuit Court of Appeals on Wednesday halted a lower court’s ruling that prevented the Biden administration from factoring the...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
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
On Tuesday, August 21, 2018, the U.S. Environmental Protection Agency (EPA) announced its Affordable Clean Energy (ACE) Rule, a proposal to replace the Clean Power Plan issued in 2015. EPA Acting Administrator Andrew Wheeler...more
A policy memorandum issued by the U.S. Environmental Protection Agency (“EPA”) during December 2017 clarifies how the agency will apply and enforce certain facets of the New Source Review regulations following a pair of...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