Michigan Supreme Court hears Line 5 review case as opponents challenge tunnel project approval

By: Kyle Davidson

Outlets: Michigan Advance

Published: March 11, 2026

Words: 1,219

Last Updated: 4 months, 3 weeks ago


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A key permit from state energy regulators approving Enbridge’s Line 5 tunnel project sat before the Michigan Supreme Court on Wednesday as the justices heard two cases arguing the permit should be sent back to the Michigan Public Service Commission for further review.

The Michigan Public Service Commission in December 2023 approved the application, determining that the tunnel project would be the best available solution to mitigate concerns of an oil spill from …

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