to the Corporation, and in accord with law, and to make such contracts and commitments without regard to fiscal year limitations, as provided by section 104 of the Government Corporation Control Act, as amended, as may be necessary in carrying out the programs set forth in the Corporation's budget for the current fiscal year. Operations and maintenance (harbor maintenance trust fund) For necessary expenses to conduct the operations, maintenance, and capital asset renewal activities of those portions of the St. Lawrence Seaway owned, operated, and maintained by the Saint Lawrence Seaway Development Corporation, $40,000,000, 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 $19,000,000 shall be used on 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 For necessary expenses of operations and training activities authorized by law, $505,228,000, of which $22,000,000 shall remain available until expended for maintenance and repair of training ships at State Maritime Academies, and of which $300,000,000 shall remain available until expended for the National Security Multi-Mission Vessel Program, including funds for construction, planning, administration, and design of school ships in accordance with section 3505 of Public Law 114–328 , as applicable