News & Analysis as of

Clean Air Act Chevron Deference Rulemaking Process

Williams Mullen

Environmental Notes - July 2025

Williams Mullen on

Is the Once in, Always in Policy Finally Dead? EPA’s controversial “Once in, always in, Rule” (Once in Rule) was recently rescinded under the Congressional Review Act, a statute which gives Congress the authority to...more

DLA Piper

EPA Proposes to Rescind Landmark Greenhouse Gas Endangerment Finding and Eliminate Mobile Source Emissions Standards for GHGs

DLA Piper on

Today, August 1, 2025, the US Environmental Protection Agency (EPA) published a controversial proposed rule that, if finalized, would rescind the agency’s landmark 2009 determination that greenhouse gas (GHG) emissions from...more

Flaster Greenberg PC

Chevron Deference Decisions and Its Implications on Businesses

Flaster Greenberg PC on

A win for business. The Supreme Court ends Chevron Deference in a spate of recent decisions limiting administrative authority and assisting regulated parties in challenging agency rulemaking. Loper Bright and Relentless-...more

Holland & Knight LLP

Chevron Deference Running on Fumes?

Holland & Knight LLP on

Recently, the U.S. Supreme Court agreed to revisit one of its most significant rulings affecting administrative rules and regulations by granting cert in the matter Loper Bright Enterprises v. Raimondo. The court's decision...more

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