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In the first major National Environmental Policy Act (“NEPA”) case to reach the Supreme Court in almost two decades, the U.S. Supreme Court issued its decision on May 29, 2025, in Seven County Infrastructure Coalition v. Eagle County, Colorado.

The Department of the Treasury (“Treasury”) and the Internal Revenue Service (“IRS”) have released final regulations designating so-called “basis-shifting” transactions among related parties as “transactions of interest.”

On November 19, 2024, Vinson & Elkins LLP hosted an event on how the regulatory landscape may develop during the incoming Trump administration.

Attorneys in our appellate, energy regulatory, environmental, tax, securities, and employment practices explored how these landmark rulings affect administrative law and practice and what comes next.

In the final decision of the Supreme Court’s term, the Court again considered the Administrative Procedure Act (“APA”).

In a landmark decision, the Supreme Court has overruled the Chevron doctrine, fundamentally altering the landscape of administrative law and significantly impacting federal tax administration.

For more than a decade, the U.S. Securities and Exchange Commission (the “SEC”) has been able to bring enforcement actions in either federal court or the agency’s internal venue.

On November 29, 2023, the Supreme Court heard oral argument in a critically important administrative law case, Securities and Exchange Commission v. Jarkesy, No. 22-859.