1. Short title This Act may be cited as the Polar Security Cutter Acquisition Act of 2019 . 2. Polar security cutter acquisition requirements (a) Coast Guard and Maritime Transportation Act of 2012 Section 222 of the Coast Guard and Maritime Transportation Act of 2012 ( Public Law 112–213 ) is amended by— (1) redesignating subsection (c) as subsection (d); and (2) inserting after subsection (b) the following: (c) Acquisition requirements (1) In general Subject to the availability of appropriations, in acquiring any polar icebreaker, except for an icebreaker authorized under the National Defense Authorization Act for Fiscal Year 2018 ( Public Law 115–91 ), the Commandant of the Coast Guard shall— (A) limit military specifications for such vessel to armament, aviation capabilities, communications equipment, and navigation equipment, as described in the letter report, unless funding is provided from other than appropriations for the Department of Homeland Security; (B) ensure specifications and key drawings are complete before awarding the contract for construction; (C) ensure detail design of the vessel is complete before the start of construction; (D) to the extent practicable, use the block-buy contract authority provided under section 1137 of title 14, United States Code