(B) Voyages attempted by vessels engaged 
in commercial service and ferries to transit ice- 
covered waterways in the Great Lakes that do 
not reach their intended destination because of 
the nonavailability of a suitable icebreaking ves-
sel. 
(C) The period of time that each vessel en-
gaged in commercial service or ferry was de-
layed in getting underway or during a transit of 
ice-covered waterways in the Great Lakes due 
to the nonavailability of a suitable icebreaking 
vessel. 
(D) The period of time elapsed between 
each request for icebreaking assistance by a 
vessel engaged in commercial service or ferry 
and the arrival of a suitable icebreaking vessel 
and whether such icebreaking vessel was a 
Coast Guard or commercial asset. 
(E) The percentage of hours that Great 
Lakes ice-covered waterways were open to navi-
gation while vessels engaged in commercial 
service and ferries attempted to transit such 
waterways for each ice season after the date of 
enactment of this Act. 
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(F) Relevant communications of each ves-
sel engaged in commercial service or ferry with 
the Coast Guard or commercial icebreaking 
service providers with respect to subparagraphs 
(A) through (D). 
(G) A description of any mitigating cir-
cumstance, such as Coast Guard Great Lakes 
icebreaker diversions to higher priority mis-
sions, that may have contributed to the amount 
of time described in subparagraphs (C) and (D) 
or the percentage of time described in subpara-
graph (E). 
(3) VOLUNTARY REPORTING.—Any reporting by 
operators of commercial vessels engaged in commer-
cial service or ferries under this section shall be vol-
untary. 
(4) PUBLIC AVAILABILITY.—The Commandant 
shall make the data collected, archived, and dissemi-
nated under this subsection available to the public 
on a publicly accessible internet website of the Coast 
Guard. 
(5) CONSULTATION WITH INDUSTRY.—With re-
spect to the Great Lakes icebreaking operations of 
the Coast Guard and the development of the data 
collected, archived, and disseminated under this sub-
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section, the Commandant shall consult operators 
of— 
(A) vessels engaged in commercial service; 
and 
(B) ferries. 
(c) REPORT ON COMMON HULL DESIGN.—Section 
8105 of the William M. (Mac) Thornberry National De-
fense Authorization Act for Fiscal Year 2021 (Public Law 
116–283) is amended by striking subsection (b) and in-
serting the following: 
‘‘(b) REPORT.—Not later than 90 days after the date 
of enactment of this subsection, 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 Rep-
resentatives a report on the operational benefits and limi-
tations of a common hull design for icebreaking cutters 
for operation in the Great Lakes, the Northeastern United 
States, and the Arctic, as appropriate, that are at least 
as capable as the Coast Guard 140-foot icebreaking 
tugs.’’. 
(d) DEFINITIONS.—In this section: 
(1) COMMERCIAL
SERVICE.—The term ‘‘com-
mercial service’’ has the meaning given such term in 
section 2101 of title 46, United States Code. 
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(2) 
GREAT
LAKES.—The 
term 
‘‘Great 
Lakes’’— 
(A) has the meaning given such term in 
section 118 of the Federal Water Pollution 
Control Act (33 U.S.C. 1268); and 
(B) includes harbors adjacent to such 
waters. 
(3) ICE-COVERED WATERWAY.—The term ‘‘ice- 
covered waterway’’ means any portion of the Great 
Lakes in which vessels engaged in commercial serv-
ice or ferries operate that is 70 percent or greater 
covered by ice, but does not include any waters adja-
cent to piers or docks for which commercial 
icebreaking services are available and adequate for 
the ice conditions. 
(4) OPEN TO NAVIGATION.—The term ‘‘open to 
navigation’’ means navigable to the extent necessary 
to— 
(A) meet the reasonable demands of ship-
ping; 
(B) minimize delays to passenger ferries; 
(C) extricate vessels and persons from dan-
ger; 
(D) prevent damage due to flooding; and 
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(E) conduct other Coast Guard missions, 
as required. 
(5) REASONABLE DEMANDS OF SHIPPING.—The 
term ‘‘reasonable demands of shipping’’ means the 
safe movement of vessels engaged in commercial 
service and ferries transiting ice-covered waterways 
in the Great Lakes to their intended destination, re-
gardless of type of cargo. 
SEC. 211. CENTER OF EXPERTISE FOR GREAT LAKES OIL 
SPILL SEARCH AND RESPONSE. 
Section 807(d) of the Frank LoBiondo Coast Guard 
Authorization Act of 2018 (14 U.S.C. 313 note) is amend-
ed to read as follows: 
‘‘(d) DEFINITION.—In this section, the term ‘Great 
Lakes’ means— 
‘‘(1) Lake Ontario; 
‘‘(2) Lake Erie; 
‘‘(3) Lake Huron (including Lake St. Clair); 
‘‘(4) Lake Michigan; 
‘‘(5) Lake Superior; and 
‘‘(6) the connecting channels (including the fol-
lowing rivers and tributaries of such rivers: Saint 
Mary’s River, Saint Clair River, Detroit River, Niag-
ara River, Illinois River, Chicago River, Fox River, 
Grand River, St. Joseph River, St. Louis River, Me-
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