HR4375-119

In Committee

Great Lakes Icebreaker Act of 2025

119th Congress Introduced Jul 14, 2025

Summary

What This Bill Does

The Great Lakes Icebreaker Act directs the Coast Guard Commandant to report within 90 days on how the Coast Guard will complete design and construction of a Great Lakes icebreaker at least as capable as the Coast Guard cutter Mackinaw as quickly as possible after funding is provided. The strategy must include a cost estimate and delivery timeline. The Commandant must also run a pilot program during the next five ice seasons to test whether the Great Lakes icebreaking cutter fleet can keep tier one and tier two waterways open 95 percent of the time during an ice season. Within 180 days after each of those five ice seasons, the Commandant must report results and new performance measures to the Senate Commerce Committee and House Transportation and Infrastructure Committee. The bill also requires public and committee cost reporting for meeting Coast Guard domestic icebreaking standards in fiscal years 2024 through 2026.

Who Benefits and How

Great Lakes shippers benefit if a new icebreaker and performance pilot improve winter navigation reliability. Great Lakes ports benefit from a 95 percent open-waterway target for tier one and tier two waterways during ice season. Manufacturers and agricultural exporters using Great Lakes freight benefit from reduced winter shipping disruptions. Congressional transportation committees benefit from cost estimates, delivery timelines, performance results, and public cost reports.

Who Bears the Burden and How

The Coast Guard Commandant must prepare the 90-day icebreaker strategy and run a five-season pilot program. Coast Guard acquisition staff must estimate costs and delivery timelines for an icebreaker at least as capable as the Mackinaw. Coast Guard icebreaking crews must measure and report fleet performance against the 95 percent waterway availability goal. Federal taxpayers bear future acquisition and operating costs if Congress funds the new Great Lakes icebreaker.

Key Provisions

  • Requires a Coast Guard strategy within 90 days for a Great Lakes icebreaker at least as capable as the Mackinaw.
  • Requires the strategy to include a cost estimate and expedited delivery timeline after funding is provided.
  • Creates a five-ice-season pilot program testing 95 percent availability for tier one and tier two Great Lakes waterways.
  • Requires annual post-season reports, public cost reporting, and committee briefings on domestic icebreaking standards.

Evidence Chain:

This summary is generated from the full bill text using AI analysis. Expand "Detailed Analysis" below for identified beneficiaries/burden bearers with clause-level evidence links.

At a Glance

What This Bill Does

Requires Coast Guard planning and reporting for expedited design and construction of a Great Lakes icebreaker at least as capable as the Mackinaw, plus a five-season pilot to keep tier one and tier two waterways open 95 percent of the time.

Key Policy Areas

Maritime, Great Lakes, Coast Guard

Primary Purpose

Requires Coast Guard planning and reporting for expedited design and construction of a Great Lakes icebreaker at least as capable as the Mackinaw, plus a five-season pilot to keep tier one and tier two waterways open 95 percent of the time.

Policy Domains

Maritime Great Lakes Coast Guard

Resolution provisions

Identified Gains
  • Great Lakes shippers
  • Great Lakes ports
  • Manufacturers using Great Lakes freight
  • Congressional transportation committees
Model: codex-gpt-5 | Version: bill_summary_v2 | Source: ih
Great Lakes ports:
Great Lakes shippers:
Congressional transportation committees:
Manufacturers using Great Lakes freight:
Identified Costs
  • Coast Guard Commandant
  • Coast Guard acquisition staff
  • Coast Guard icebreaking crews
  • Federal taxpayers
Model: codex-gpt-5 | Version: bill_summary_v2 | Source: ih
Federal taxpayers:
Coast Guard Commandant:
Coast Guard acquisition staff:
Coast Guard icebreaking crews:

Legislative Progress

In Committee
Introduced Committee Passed
Jul 15, 2025

Referred to the Subcommittee on Coast Guard and Maritime Transportation.

Jul 14, 2025

Ms. McDonald Rivet (for herself, Mr. Wied, and Mr. Miller …

Jul 14, 2025

Referred to the House Committee on Transportation and Infrastructure.

Jul 14, 2025

Introduced in House

Stakeholder Effects

cui bono?

How this legislation distributes effects. Mention counts reflect frequency, not effect magnitude.

Government
2 mentions across 1 clause
-2 negative

Coast Guard Commandant, Coast Guard acquisition staff

Transportation
1 mention across 1 clause
+1 positive

Great Lakes shippers

Ports
1 mention across 1 clause
+1 positive

Great Lakes ports

Manufacturing
1 mention across 1 clause
+1 positive

Manufacturers using Great Lakes freight

Taxpayers
1 mention across 1 clause
-1 negative

Taxpayers

1/2
sections analyzed
Full impact breakdown

Bill Structure & Actor Mappings

Who is "The Secretary" in each section?

Domains
Maritime Great Lakes Coast Guard

We use a combination of our own taxonomy and classification in addition to large language models to assess meaning and potential beneficiaries. High confidence means strong textual evidence. Always verify with the original bill text.

Learn more about our methodology