News & Analysis as of

Comment Period Proposed Rules Clean Air Act

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

Jones Day

EPA Proposes Repeal of Greenhouse Gas Standards for Power Plants

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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

Bergeson & Campbell, P.C.

EPA Proposes RFS Standards for 2026 and 2027, Will Hold Hearing on July 8, 2025

The Clean Air Act (CAA) requires the U.S. Environmental Protection Agency (EPA) to determine the applicable volume requirements for the Renewable Fuel Standard (RFS) for years after those specified in the statute. On June 17,...more

Jenner & Block

New EPA Rule Removes Emergency Defense Waiver in Title V Air Permits

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On July 21, 2023, the Environmental Protection Agency published a final rule eliminating an affirmative defense for Clean Air Act permit emissions violations caused by “emergency” circumstances. “Major sources” (i.e....more

Latham & Watkins LLP

5 Things to Know About EPA’s Proposed Power Plant CO2 Emissions Rule

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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

Hogan Lovells

EPA’s proposes most stringent vehicle emission standards ever for model years 2027-2032

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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

Morgan Lewis

EPA Proposes Including 'Fugitive' Air Emissions for Major Source Permitting

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The US Environmental Protection Agency recently proposed a rule change that would formally repeal a 2008 rule and require all existing major industrial facilities to include “fugitive” emissions in preconstruction evaluations...more

Beveridge & Diamond PC

Climate Change, Environmental Justice, and Process Safety: EPA Proposes Risk Management Program Rule Amendments (Updated)

The U.S. Environmental Protection Agency (EPA) has proposed to further amend its Clean Air Act Risk Management Program (RMP) rules and has issued a proposed rule. 87 Fed. Reg. 53556 (August 31, 2022). The proposed rule would...more

Vinson & Elkins LLP

EPA Extends Comment Period for Oil and Gas Methane and VOC Emissions Rulemaking

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On November 15, 2021, the Environmental Protection Agency (“EPA”) published a proposed rule that included three separate actions under the Clean Air Act that target new and existing air emission sources at oil and natural gas...more

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

U.S. Environmental Protection Agency Affordable Clean Energy Rule: October 31st Arkansas Department of Environmental Quality...

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

Beveridge & Diamond PC

Will EPA ‘ACE’ Its Attempt to Replace the Clean Power Plan? A Deeper Dive into EPA’s Proposed Affordable Clean Energy Rule

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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

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

Emissions Averaging/Proposed NESHAP for Clay Ceramics Manufacturing: National Association of Clean Air Agencies Comments

The National Association of Clean Air Agencies (“NACAA”) submitted October 4th comments to the United States Environmental Protection Agency (“EPA”) on its proposed National Emission Standards for Hazardous Air Pollutants...more

Jones Day

EPA Offers ACE Rule to Trump Clean Power Plan

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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

Womble Bond Dickinson

EPA Proposes Replacement to Clean Power Plan

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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

Holland & Knight LLP

EPA Seeks Comments on Clean Power Plan Replacement

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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

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