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Illustration for Diamond Alternative Energy, LLC v. EPA
Docket 24-7

Diamond Alternative Energy, LLC v. EPA

The Supreme Court ruled that fuel producers have Article III standing to challenge EPA-approved California regulations requiring more electric vehicles, finding that the producers sufficiently demonstrated that invalidating the rules would likely redress their economic injuries. The decision reversed a lower court holding that the producers failed to prove automakers would manufacture fewer electric vehicles in the absence of the regulations.

Status
Decided
Appeal from
United States Court of Appeals for the District of Columbia Circuit
Argued
Apr 23, 2025
Decision released
Jun 20, 2025

Decision briefing

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Where things stand

Timeline

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Case Accepted
Arguments HeardApr 23, 2025
Decision ReleasedJun 20, 2025

Source note

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Page data last refreshed Mar 9, 2026.

Primary materials

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Briefs

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