News & Analysis as of

Air Pollution Clean Air Act Infrastructure

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

Goldberg Segalla

New York Fighting the Federal Government to Clear the Air on Congestion Pricing

Goldberg Segalla on

Ask any New Yorker what their top five complaints are about the city and either “traffic” or “gridlock” (or both) are all but certain to be represented. Indeed, you don’t get to be called “the Business Capital of the World”...more

Troutman Pepper Locke

Texas BACT Is a Fact: The Texas Supreme Court Unpacks the Texas Clean Air Act’s BACT Definition

Troutman Pepper Locke on

Port Arthur Community Action Network (PACAN) v. Texas Commission on Environmental Quality et al. (Tex. Feb. 14, 2025) presented the Texas Supreme Court with a unique opportunity to provide defined guideposts to understand...more

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

U.S. Environmental Protection Agency Transition Team: Association of Clean Water Administrators/National Association of Clean Air...

Ten national organizations that represent state, tribal, and local partners transmitted a January 6th letter to the United States Environmental Protection Agency Transition Team offering assistance to the second Trump...more

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

Particulate Matter/Revised National Ambient Air Quality Standard: 24 State Attorneys General (including Arkansas) Challenge U.S....

Twenty-four State Attorneys General filed a Petition for Review (“Petition for Review”) in the United States Court of Appeals for the District of Columbia Circuit challenging a United States Environmental Protection Agency...more

Mayer Brown

Lawsuit Challenges Recent California Climate Disclosure Laws

Mayer Brown on

As discussed in our earlier Client Alerts, California recently passed several laws requiring certain climate-related corporate disclosures, including, for example, regarding emissions and climate-related financial risk. As...more

Jones Day

EPA Proposes Stricter Mercury and Air Toxics Standards for Power Plants

Jones Day on

The Environmental Protection Agency ("EPA") has announced a new proposed rule that would strengthen the National Emission Standards for Hazardous Air Pollutants ("NESHAP") for Coal- and Oil- Fired Electric Utility Steam...more

Vinson & Elkins LLP

EPA Proposes Far-Reaching Methane Rules for the Oil and Gas Sector

Vinson & Elkins LLP on

The first action proposes first-time emission guidelines to reduce methane emissions from almost 1 million existing oil and gas wells, almost 2,000 existing interstate natural gas compressor stations, and over 500 existing...more

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

U.S. House of Representatives Subcommittee on Environment Hearing/New Source Review Permitting – Challenges for Manufacturing...

The Subcommittee on Environment of the United States House of Representatives Energy and Commerce Committee held a hearing on February 14th entitled: New Source Review Permitting Challenges for Manufacturing of...more

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