; 120 Stat. 2104) is repealed. 124. Design and construction of amphibious transport dock designated LPD–31 (a) In general The Secretary of the Navy may enter into a contract for the design and construction of the amphibious transport dock designated LPD–31 using amounts authorized to be appropriated for the Department of Defense for Shipbuilding and Conversion, Navy. (b) Use of incremental funding With respect to the contract entered into under subsection (a), the Secretary may use incremental funding to make payments under the contract with amounts authorized to be appropriated in fiscal years 2019, 2020, and 2021. (c) Condition for out-year contract payments The contract entered into under subsection (a) shall provide that any obligation of the United States to make a payment under such contract for any fiscal year after fiscal year 2020 is subject to the availability of appropriations for that purpose for such fiscal year. 125. LHA Replacement Amphibious Assault Ship Program (a) Authority to use incremental funding The Secretary of the Navy may enter into and incrementally fund a contract for detail design and construction of the LHA replacement ship designated LHA 9 and, subject to subsection (b), funds for payments under the contract may be provided from amounts authorized to be appropriated for the Department of Defense for Shipbuilding and Conversion, Navy, for fiscal years 2019 through 2025. (b) Condition for out-year contract payments A contract entered into under subsection (a) shall provide that any obligation of the United States to make a payment under the contract for any subsequent fiscal year is subject to the availability of appropriations for that purpose for such subsequent fiscal year. (c) Repeal of obsolete authority Section 125 of the John Warner National Defense Authorization Act for Fiscal Year 2007 ( Public Law 109–364