Act not obligated by September 30, 2022, and other recoveries, shall be directed to projects eligible to use the funds for the purposes for which they were originally provided. 162. Notwithstanding any other provision of law, any funds appropriated before October 1, 2018, under any section of chapter 53 of title 49, United States Code, that remain available for expenditure, may be transferred to and administered under the most recent appropriation heading for any such section. 163. Notwithstanding any other provision of law, none of the funds made available in this Act shall be used to enter into a full funding grant agreement for a project with a New Starts share greater than 51 percent. 164. Of the unobligated amounts made available for fiscal years 2005 or prior fiscal years to Transit Formula Grants , a total of $46,560,000 is hereby permanently rescinded. 165. None of the funds made available under this Act may be used for the implementation or furtherance of new policies detailed in the Dear Colleague letter distributed by the Federal Transit Administration to capital investment grant program project sponsors on June 29, 2018. Saint lawrence seaway development corporation The Saint Lawrence Seaway Development Corporation is hereby authorized to make such expenditures, within the limits of funds and borrowing authority available 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 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,