maintenance, and capital asset renewal activities on those portions of the Saint Lawrence Seaway owned, operated, and maintained by the Saint Lawrence Seaway Development Corporation, $36,000,000, to be derived from the Harbor Maintenance Trust Fund, pursuant to Public Law 99–662 : Provided , That of the amounts made available under this heading, not less than $16,000,000 shall be used on capital asset renewal activities. Maritime administration Maritime security program For necessary expenses to maintain and preserve a U.S.-flag merchant fleet to serve the national security needs of the United States, $300,000,000, to remain available until expended. Operations and training (Including transfer of funds) For necessary expenses of operations and training activities authorized by law, $149,442,000, of which $70,593,000 shall remain available until September 30, 2020 for the operations of the United States Merchant Marine Academy, and of which $18,000,000 shall remain available until expended for the maintenance and repair, equipment, and capital improvements at the United States Merchant Marine Academy: Provided , That not later than January 12, 2019, the Administrator of the Maritime Administration shall transmit to the House and Senate Committees on Appropriations the annual report on sexual assault and sexual harassment at the United States Merchant Marine Academy as required pursuant to section 3507 of Public Law 110–417 : Provided further , That of the amounts made available under this heading, $3,000,000 shall remain available until September 30, 2020 for the Maritime Environment and Technology Assistance program authorized under section 50307 of title 46, United States Code: Provided further , That of the amounts made available under this heading, $7,000,000, shall remain available until expended for the Short Sea Transportation Program (America's Marine Highways) to make grants for the purposes authorized under sections 55601(b)(1) and (3) of title 46, United States Code: Provided further , That available