Comprehensive guide to Clean Air Act Interpretation cases, courts, and legal analysis.
Climate United Fund v. Citibank, N.A.; EPA, decided by D.C. Circuit on December 17, 2025, resulted in a defendant win outcome. The D.C. Circuit reviewed the EPA's denial of a petition to regulate gree...
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...
Donald Johnson v. United States Congress, decided by Eleventh Circuit on August 19, 2025, resulted in a plaintiff win outcome. The Eleventh Circuit addressed whether the "major questions doctrine" app...
Climate United Fund v. Citibank, N.A.; EPA, decided by D.C. Circuit on April 28, 2025, resulted in a defendant win outcome. The D.C. Circuit reviewed the EPA's denial of a petition to regulate greenho...
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