I 
119TH CONGRESS 
1ST SESSION H. R. 4375 
To direct the Commandant of the Coast Guard to submit to Congress a 
strategy detailing how the Coast Guard will complete design and con-
struction of a Great Lakes Icebreaker, and for other purposes. 
IN THE HOUSE OF REPRESENTATIVES 
JULY 14, 2025 
Ms. MCDONALD RIVET (for herself, Mr. WIED, and Mr. MILLER of Ohio) in-
troduced the following bill; which was referred to the Committee on 
Transportation and Infrastructure 
A BILL 
To direct the Commandant of the Coast Guard to submit 
to Congress a strategy detailing how the Coast Guard 
will complete design and construction of a Great Lakes 
Icebreaker, and for other purposes. 
Be it enacted by the Senate and House of Representa-
tives of the United States of America in Congress assembled, 
SECTION 1. SHORT TITLE. 
This Act may be cited as the ‘‘Great Lakes Ice-
breaker Act of 2025’’. 
SEC. 2. GREAT LAKES ICEBREAKING. 
(a) GREAT LAKES ICEBREAKER.— 
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(1) STRATEGY.—Not later than 90 days after 
the date of enactment of this Act, the Commandant 
shall submit to the Committee on Commerce, 
Science, and Transportation of the Senate and the 
Committee on Transportation and Infrastructure of 
the House of Representatives a strategy detailing 
how the Coast Guard will complete design and con-
struction of a Great Lakes icebreaker at least as ca-
pable as the Coast Guard cutter Mackinaw (WLBB– 
30) as expeditiously as possible after funding is pro-
vided for such icebreaker, including providing a cost 
estimate and an estimated delivery timeline that 
would facilitate the expedited delivery detailed in the 
strategy. 
(2) GREAT
LAKES
ICEBREAKER
PILOT
PRO-
GRAM.— 
(A) IN GENERAL.—During the 5 ice sea-
sons beginning after the date of enactment of 
this Act, the Commandant shall conduct a pilot 
program to determine the extent to which the 
Coast Guard Great Lakes icebreaking cutter 
fleet is capable of maintaining tier one and tier 
two waterways open 95 percent of the time dur-
ing an ice season. 
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(B) REPORT.—Not later than 180 days 
after the end of each of the 5 ice seasons begin-
ning after the date of enactment of this Act, 
the Commandant shall submit to the Committee 
on Commerce, Science, and Transportation of 
the Senate and the Committee on Transpor-
tation and Infrastructure of the House of Rep-
resentatives a report that details— 
(i) the results of the pilot program re-
quired under subparagraph (A); and 
(ii) any relevant new performance 
measures 
implemented 
by 
the 
Coast 
Guard, including the measures described in 
pages 5 through 7 of the report of the 
Coast Guard titled ‘‘Domestic Icebreaking 
Operations’’ and submitted to Congress on 
July 26, 2024, as required by section 
11212(a)(3) of the Don Young Coast 
Guard Authorization Act of 2022 (Public 
Law 117-263), and the results of the im-
plementation of such measures. 
(b) MODIFICATION
TO REPORTING REQUIREMENT 
RELATING
TO ICEBREAKING OPERATIONS
IN GREAT 
LAKES.— 
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(1) IN GENERAL.—Section 11213(f) of the Don 
Young Coast Guard Authorization Act of 2022 
(Public Law 117–263) is amended to read as fol-
lows: 
‘‘(f) PUBLIC REPORT.—Not later than July 1 after 
the first winter in which the Commandant has submitted 
the report required by paragraph (3) of section 11212(a), 
the Commandant shall publish on a publicly accessible 
website of the Coast Guard a report on the cost to the 
Coast Guard of meeting the proposed standards described 
in paragraph (2) of such section.’’. 
(2) PUBLIC REPORT.—Section 11272(c) of the 
James M. Inhofe National Defense Authorization 
Act for Fiscal Year 2023 is amended by adding at 
the end the following: 
‘‘(7) PUBLIC REPORT.— 
‘‘(A) IN
GENERAL.—Not later than 30 
days after the date of enactment of the Coast 
Guard Authorization Act of 2025, the Com-
mandant shall brief the Committee on Trans-
portation and Infrastructure of the House or 
Representatives and the Committee on Com-
merce, Science, and Transportation of the Sen-
ate on the cost to the Coast Guard of meeting 
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the requirements of section 564 of title 14, 
United States Code, in fiscal year 2024. 
‘‘(B) SECONDARY
BRIEFINGS.—Not later 
than November, 2025 and November, 1, 2026, 
the Commandant shall brief the committees de-
scribed in subparagraph (A) on the cost to the 
Coast Guard of meeting the requirements of 
section 564 of title 14, United States Code, in 
fiscal years 2025 and 2026, respectively.’’. 
Æ 
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