the Secretary of State shall, at the time of the submission of the President's budget to Congress under section 1105(a) of title 31, United States Code, transmit to the Committees on Appropriations the most recent biennial budget prepared by the United Nations for the operations of the United Nations: Provided further , That the Secretary of State shall notify the Committees on Appropriations at least 15 days in advance (or in an emergency, as far in advance as is practicable) of any United Nations action to increase funding for any United Nations program without identifying an offsetting decrease elsewhere in the United Nations budget: Provided further , That not later than June 1, 2019, and 30 days after the end of fiscal year 2019, the Secretary of State shall report to the Committees on Appropriations any credits attributable to the United States, including from the United Nations Tax Equalization Fund, and provide updated fiscal year 2019 and fiscal year 2020 assessment costs including offsets from available credits and updated foreign currency exchange rates: Provided further , That any such credits shall only be available for United States assessed contributions to the United Nations regular budget, and the Committees on Appropriations shall be notified when such credits are applied to any assessed contribution, including any payment of arrearages: Provided further , That any notification regarding funds appropriated or otherwise made available under this heading in this Act or prior Acts making appropriations for the Department of State, foreign operations, and related programs submitted pursuant to section 7015 of this Act, section 34 of the State Department Basic Authorities Act of 1956 ( 22 U.S.C. 2706 ), or any operating plan submitted pursuant to section 7076 of this Act, shall include an estimate of all known credits currently attributable to the United States and provide updated assessment costs including offsets from available credits and updated foreign currency exchange rates: Provided further