News & Analysis as of

Greenhouse Gas Emissions Chevron Deference Regulatory Authority

Verrill

EPA’s Proposed Reversal of the Greenhouse Gas Endangerment Finding—How Politics Drives Legal Reinterpretation of the Clean Air Act

Verrill on

On August 20, 2025, Massachusetts Attorney General Andrea Campbell, among several other state attorneys general, testified in opposition to the Environmental Protection Agency’s (EPA) proposal to reverse its 2009 finding that...more

Pillsbury Winthrop Shaw Pittman LLP

How Broad Is Too Broad? Supreme Court Considers Scope of NEPA

The U.S. Supreme Court is poised to address a circuit split over whether an agency doing an environmental review under the National Environmental Policy Act (NEPA) must consider effects beyond its regulatory jurisdiction,...more

Venable LLP

Environmental Law in a Post-Chevron World

Venable LLP on

Last week, Venable’s Government Division offered its general thoughts on the fallout from the Supreme Court’s reversal of the long-standing Chevron deference principle. Here, the Environmental Practice Group offers some of...more

Jones Day

U.S. Supreme Court Curbs Executive Power and Reach of EPA

Jones Day on

What Happened: West Virginia v. EPA - In West Virginia v. EPA, the Supreme Court ruled in favor of Jones Day client, the North American Coal Corporation, and determined that the EPA did not have clear authorization from...more

WilmerHale

Major Decision on Major Questions Doctrine, Agency Regulatory Discretion

WilmerHale on

The Clean Power Plan is a program developed by the Environmental Protection Agency to reduce greenhouse gas emissions by forcing electric power generation to shift from coal-fired plants to renewable sources, such as wind and...more

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