The Supreme Court will hear arguments Tuesday in disputes about which federal courts should handle Clean Air Act lawsuits.
Two areas of disagreement — the implementation of federal ozone regulations in the states and the biofuel-blending waivers EPA grants small refineries for economic hardship — are at issue.
In two consolidated ozone-related cases, PacifiCorp v. EPA and Oklahoma v. EPA, justices will consider the environmental agency’s denial of 21 state implementation plans to reduce ozone pollution crossing state lines.
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The biofuel case, EPA v. Calumet Shreveport Refining, concerns the agency’s 2022 denial of small refinery exemptions under the federal renewable fuel standard.
