Michigan commission calls Enbridge Line 5 tunnel application deficient, requests more evidence
The Michigan utilities commission said late July 7 that Enbridge's long-standing application is "deficient on critical matters of engineering and safety, and additional evidence is needed for the commission to complete its analysis."

https://www.spglobal.com/commodityinsights/en/market-insights/latest-news/natural-gas/070822-michigan-commission-calls-enbridge-line-5-tunnel-application-deficient-requests-more-evidence