PlainBillCongress, translated.Legislation. Context. Public interest.Placed on Senate Legislative Calendar under General Orders. Calendar No. 197.
Congressional Research Service
Version 25 · Reported to Senate · Dec 16, 2021
Great Lakes Winter Commerce Act of 2021
This bill directs the U.S. Coast Guard to conduct icebreaking operations in the Great Lakes in accordance with specific performance standards.
Specifically, the Coast Guard must
keep channels and harbors in the Great Lakes open to navigation not less than 90% of the hours that commercial vessels and ferries attempt to transit ice-covered waterways; and
in a year in which the Great Lakes are not open to navigation because of ice of a thickness that occurs on average only once every 10 years, keep channels and harbors open to navigation at least 70% of the hours that commercial vessels and ferries attempt to transit ice-covered waterways.
Additionally, the Coast Guard must establish and maintain a database for collecting, archiving, and disseminating data on icebreaking operations and commercial vessel transit in the Great Lakes during ice season.
The bill also directs the Coast Guard to acquire a Great Lakes icebreaker that is at least as capable as Coast Guard Cutter Mackinaw.
The Government Accountability Office must submit to Congress a report on the Coast Guard Great Lakes icebreaking program.
People & committees
Sen. Baldwin, Tammy [D-WI] · D–WI
Legislative record
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Placed on Senate Legislative Calendar under General Orders. Calendar No. 197.
Committee on Commerce, Science, and Transportation. Reported by Senator Cantwell with an amendment in the nature of a substitute. Without written report.
Committee on Commerce, Science, and Transportation. Reported by Senator Cantwell with an amendment in the nature of a substitute. Without written report.
Committee on Commerce, Science, and Transportation. Ordered to be reported with an amendment in the nature of a substitute favorably.
Read twice and referred to the Committee on Commerce, Science, and Transportation.
Introduced in Senate
Primary sources
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Source last updated: Sep 8, 2026. Consult Congress.gov for the current record.
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