Lucas Cnty. Bd. of Comm'rs v. EPA, decided by Sixth Circuit on March 9, 2026, resulted in a mixed outcome. The Sixth Circuit reviewed the Environmental Protection Agency's (EPA) decision to approve Oh...
Wynnewood Refining v. EPA, decided by Fifth Circuit on August 7, 2025, resulted in a remanded outcome. The Fifth Circuit reviewed the EPA's final rule establishing a national ambient air quality stand...