Comprehensive guide to Environmental Protection Agency Epa Rulemaking cases, courts, and legal analysis.
Sierra Club v. EPA, decided by Sixth Circuit on December 5, 2025, resulted in a defendant win outcome. The Sixth Circuit reviewed the EPA's final rule establishing a Maximum Contaminant Level (MCL) fo...
State of Texas v. EPA, decided by Fifth Circuit on September 22, 2025, resulted in a defendant win outcome. The Fifth Circuit reviewed the EPA's authority to regulate greenhouse gas emissions under th...
SSM Litigation Group v. EPA, decided by D.C. Circuit on September 5, 2025, resulted in a remanded outcome. The D.C. Circuit reviewed the EPA's denial of a petition to regulate per- and polyfluoroalkyl...
Texas Corn Producers v. EPA, decided by Fifth Circuit on June 24, 2025, resulted in a defendant win outcome. The Fifth Circuit reviewed the EPA's "Renewable Fuel Standard" (RFS) program, which mandate...
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