The following is from the May, 24 2013 Congressional Research Service report: Coast Guard Polar Icebreaker Modernization.
The Coast Guard’s FY2013 budget initiated a new project for the design and construction of a new polar icebreaker. The Coast Guard’s proposed FY2013 budget requested $8 million in FY2013 acquisition funding to initiate survey and design activities for the ship, and projected an additional $852 million in FY2013-FY2017 for acquiring the ship. The Coast Guard’s FY2013 budget anticipated awarding a construction contract for the ship “within the next five years” and taking delivery on the ship “within a decade.”
Coast Guard polar icebreakers perform a variety of missions supporting U.S. interests in polar regions. The Coast Guard’s two existing heavy polar icebreakers—Polar Star and Polar Sea— have exceeded their originally intended 30-year service lives. Polar Star was placed in caretaker status on July 1, 2006. Congress in FY2009 and FY2010 provided funding to repair it and return it to service for an additional 7 to 10 years of service; the repair work was completed and the ship was reactivated on December 14, 2012.