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Arbitrary and Capricious › Environmental Protection Agency (EPA) › Chevron Deference

Mitchell, Williams, Selig, Gates & Woodyard,...

Exceptional Events/Clean Air Act: Federal Appellate Court Addresses Challenge to Approval of Colorado SIP

Mitchell, Williams, Selig, Gates & Woodyard,... on

The Tenth Circuit Court of Appeals (“10th Circuit”) addressed in a July 24th opinion a challenge to the United States Environmental Protection Agency (“EPA”)approval of a Colorado State Implementation Plan (“SIP”). See...more

Foley Hoag LLP - Environmental Law

In Cooperative Federalism, Who Gets Deference, EPA or the States? Can you say “Federal Supremacy”?

Foley Hoag LLP - Environmental Law on

Earlier this week, the 9th Circuit denied Arizona’s challenge to EPA’s decision to reject Arizona’s SIP addressing regional haze requirements and instead promulgate its own federal implementation plan. The decision has a...more

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