Section 504 of the Department of Homeland Security Appropriations Act, 2017 (division F of Public Law 115–31 ), related to the operations of a working capital fund, shall apply with respect to funds made available in this Act in the same manner as such section applied to funds made available in that Act. 505. Except as otherwise specifically provided by law, not to exceed 50 percent of unobligated balances remaining available at the end of fiscal year 2019, as recorded in the financial records at the time of a reprogramming notification, but not later than June 30, 2020, from appropriations for Operations and Support for fiscal year 2019 in this Act shall remain available through September 30, 2020, in the account and for the purposes for which the appropriations were provided: Provided , That prior to the obligation of such funds, a notification shall be submitted to the Committees on Appropriations of the Senate and the House of Representatives in accordance with section 503 of this Act. 506. Funds made available by this Act for intelligence activities are deemed to be specifically authorized by the Congress for purposes of section 504 of the National Security Act of 1947 ( 50 U.S.C. 414 ) during fiscal year 2019 until the enactment of an Act authorizing intelligence activities for fiscal year 2019. 507. (a) The Secretary of Homeland Security, or the designee of the Secretary, shall notify the Committees on Appropriations of the Senate and the House of Representatives at least 3 full business days in advance of— (1) making or awarding a grant allocation, grant, contract, other transaction agreement, or task or delivery order on a Department of Homeland Security multiple award contract, or to issue a letter of intent totaling in excess of $1,000,000