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* $794 million (second vessel)
* $841 million (third vessel)<ref name="RL34391_sept2022" />
* $5.1 billion ([[Congressional Budget Office|CBO]] 2024 estimate for three vessels)<ref name="cbo_april2024">{{cite web|url=https:/
| Built range =
| In service range = *
* May 2030 (current estimate)<ref name="bollinger_March2025_cm" />
| In commission range =
| Total ships planned = 3
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In August 2023, Bollinger Shipyards began steel cutting for eight "prototype modules" for the first Polar Security Cutter.<ref>{{cite web|url=https://news.usni.org/2023/08/09/bollinger-cuts-first-steel-on-polar-security-cutter-polar-sentinel|title=Bollinger Cuts First Steel on Polar Security Cutter|date=9 August 2023|accessdate=10 August 2023|publisher=USNI News}}</ref>
On 7 May 2024, the [[Congressional Budget Office]] testified before the Subcommittee on Transportation and Maritime Security of the Committee on Homeland Security. The Congressional Budget Office estimated that the total cost of three vessels would be $5.1 billion, about 60% more than the Coast Guard's estimate in March 2024, and the delivery of the first vessel would be in 2029.<ref name="cbo_april2024" /> In December 2024, it was estimated that the vessel would be operational in 2030 at the earliest.<ref name="wt20241218">{{cite web|url=https://www.washingtontimes.com/news/2024/dec/18/new-u-arctic-icebreakers-won-ready-2030-lawmakers-/|title=New U.S. Arctic icebreakers won't be ready until 2030, lawmakers say|website=Washington Times|date=18 December 2024|accessdate=21 December 2024}}</ref> When subcommittee chair [[Carlos A. Giménez]] asked why the Polar Security Cutter design was only 67% complete after five years of work, a [[Government Accountability Office]] witness explained that nothing like the Polar Security Cutter has been built in the United States in 50 years; American shipbuilders have no recent experience building large icebreakers. Coast Guard Vice Admiral [[Paul F. Thomas|Paul Thomas]] reminded the subcommittee that Halter Marine chose to base the PSC design upon the proposed ''Polarstern II'' design, rather than upon an existing Finnish icebreaker suggested by the Coast Guard. Because the ''Polarstern II'' has never been built, its design is necessarily incomplete.<ref>{{cite news |last=Ruskin |first=Liz |date=7 May 2024 |title=The U.S. was supposed to get keys to a new heavy icebreaker this year. Instead, construction is years late as costs soar. |url=https://alaskapublic.org/2024/05/07/the-u-s-was-supposed-to-get-keys-to-a-new-heavy-icebreaker-this-year-instead-construction-is-years-late-as-costs-soar/ |work=[[Alaska Public Media]] |___location=Washington, DC |access-date=8 May 2024}}</ref>
On 25 March 2025, Bollinger Shipyards secured a $951 million contract modification for the Polar Security Cutter program. The completion of the first vessel is anticipated by May 2030.<ref name="bollinger_March2025_cm">{{cite web|url=https://www.bollingershipyards.com/news/bollinger-shipyards-secures-951-million-u-s-coast-guard-contract-modification-for-polar-security-cutter-program/|title=Bollinger Shipyards secures $951 million U.S. Coast Guard Contract Modification for Polar Security Cutter Program|website=Bollinger Shipyards|date=25 March 2025|accessdate=26 March 2025}}</ref>
==Design==▼
▲==Design==
The Polar Security Cutters will be the largest icebreakers ever commissioned by the United States Coast Guard and will temporarily be the largest coast guard vessel in the world. With an [[length overall|overall length]] of {{convert|460|ft|m}}, beam of {{convert|88|ft|m}}, and a full load displacement of {{convert|22900|LT}},<ref name="vthalter-psc">{{cite web|url=http://vthm.com/polar-security-cutter/|title=Polar Security Cutter|publisher=VT Halter|accessdate=2 June 2019}}</ref> they will be bigger, wider and heavier than the current record-holder, the medium icebreaker USCGC ''Healy''. The general design is reportedly based on the proposed German polar research vessel ''Polarstern II'' which has been modified and adapted to USCG requirements such as long open water transit from its home port to Antarctica.<ref name="halterdetails">{{cite web|title=VT Halter Marine Details Coast Guard Icebreaker Bid |url=https://news.usni.org/2019/05/08/vt-halter-marine-details-coast-guard-icebreaker-bid |website=USNI News |date=8 May 2019 |accessdate=8 May 2019}}</ref> The PSCs will have accommodation for up to 186 crew, scientists and other personnel, and endurance time of 90 days.<ref name="st_second" />▼
[[File:Polar Security Cutter.jpg|thumb|right|Rendering of a Polar Security Cutter at sea.]]
▲The Polar Security Cutters will be the largest icebreakers ever commissioned by the United States Coast Guard and will temporarily{{clarify|date=February 2025}} be the largest coast guard vessel in the world. With an [[length overall|overall length]] of {{convert|460|ft|m}}, beam of {{convert|88|ft|m}}, and a full load displacement of {{convert|22900|LT}},<ref name="vthalter-psc">{{cite web|url=http://vthm.com/polar-security-cutter/|title=Polar Security Cutter|publisher=VT Halter|accessdate=2 June 2019|archive-date=2 June 2019|archive-url=https://web.archive.org/web/20190602060659/http://vthm.com/polar-security-cutter/|url-status=dead}}</ref> they will be bigger, wider and heavier than the current record-holder, the medium icebreaker USCGC ''Healy''. The general design is reportedly based on the proposed German polar research vessel ''Polarstern II'' which has been modified and adapted to USCG requirements such as long open water transit from its home port to Antarctica.<ref name="halterdetails">{{cite web|title=VT Halter Marine Details Coast Guard Icebreaker Bid |url=https://news.usni.org/2019/05/08/vt-halter-marine-details-coast-guard-icebreaker-bid |website=USNI News |date=8 May 2019 |accessdate=8 May 2019}}</ref> The PSCs will have accommodation for up to 186 crew, scientists and other personnel, and endurance time of 90 days.<ref name="st_second" />
Like most icebreakers built worldwide, the PSCs will have a [[diesel-electric]] power plant rated at over {{convert|45200|hp|kW|abbr=on}}. The vessels' main diesel generators will be supplied by Caterpillar and the propulsion system consisting of two [[Azipod]] propulsion units and a third fixed shaft line by [[ABB]] and Trident Maritime Systems.<ref name="RL34391_old" /><ref name=HalterMay05/><ref name="halterdetails" /> This will allow the PSCs to break ice with a thickness between {{convert|6|and|8|ft|m|1}}.<ref name="st_second" /> Designed according to the [[International Association of Classification Societies]] (IACS) ''Unified Requirements for Polar Class Ships'', the PSCs will be strengthened to [[Polar Class 2]] which is intended for vessels operating year-round in moderate multi-year ice conditions.<ref name="ice class">{{cite web|url=https://www.marinelink.com/news/uscg-psc-equals-meaningful-polar-presence-472887|publisher=MarineLink|title=USCG PSC Equals meaningful Polar Presence|date=14 November 2019|accessdate=15 November 2019}}</ref><ref>{{cite web|url=https://www.iacs.org.uk/download/1803|title=Requirements concerning POLAR CLASS|publisher=International Association of Classification Societies|date=April 2016|accessdate=2 January 2021}}</ref>
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The PSCs will feature a combat system derived from the [[Aegis Combat System]].<ref name="halterdetails" /> The vessels have been said to include "space, weight, and electrical power set aside to carry offensive weapons".<ref>{{cite web|url=https://breakingdefense.com/2018/01/new-icebreaker-will-have-space-power-for-weapons-coast-guard/|title=New Icebreaker Will Have Space, Power For Weapons: Coast Guard|publisher=Breaking Defence|date=10 January 2018|accessdate=2 January 2022}}</ref><ref>{{cite web |title=Ice-Strengthened Cutters For The U.S. Coast Guard ? |url=https://www.navalnews.com/naval-news/2021/02/ice-strengthened-cutters-for-the-u-s-coast-guard/?fbclid=IwAR0T2VPthGx4Mwde-AD2v3IzdRAYynkVcDbg9XHmDum0XHqYzXTMLXDjz4g |website=Naval News| date=6 February 2021 |access-date=6 February 2021}}</ref>
==
{| class="wikitable"
! align = center|Ship
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|2027 (planned)
|2028 (planned)<ref name="2023delay">{{cite web|title=GAO: Polar Security Cutter Design
| [[Seattle|Seattle, Washington]]
| Under Contract<ref name="RL34391_sept2022">{{cite news |url=https://crsreports.congress.gov/product/pdf/RL/RL34391/ |title=Coast Guard Polar Security Cutter (Polar Icebreaker) Program: Background and Issues for Congress |date=21 September 2022 |publisher=Congressional Research Service |access-date=1 October 2022}}</ref><ref>{{cite news |url=https://njscuba.net/shipbuildinghistory/statistics/currentnavy.html/ |title=U.S. Government Shipbuilding (2020) |access-date=1 October 2022}}</ref>
|-
|
| WMSP-22
| [[Bollinger Shipyards]]
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| Under Contract<ref name="RL34391_sept2022" /><ref>{{cite news |url=https://njscuba.net/shipbuildinghistory/statistics/currentnavy.html/ |title=U.S. Government Shipbuilding (2020) |access-date=1 October 2022}}</ref>
|-
| Polar Glacier
| WMSP-23
| [[Bollinger Shipyards]]
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