Supreme Court weighs Clean Air Act disputes

The U.S. Supreme Court heard arguments Tuesday on whether challenges to the EPA’s biofuel and ozone regulations should be decided by regional circuit courts or the D.C. Circuit. The cases involve small refiners disputing biofuel waiver denials and states contesting ozone air quality plan rejections. Justices questioned whether bundling multiple rulings makes them nationally applicable. A decision could impact how future environmental disputes are handled.