addition, for the costs of worldwide security upgrades, acquisition, and construction as authorized, $1,546,015,000, to remain available until September 30, 2023: Provided , That not later than 45 days after enactment of this Act, the Secretary of State shall submit to the Committees on Appropriations the proposed allocation of funds made available under this heading and the actual and anticipated proceeds of sales or gifts for all projects in fiscal year 2019. Emergencies in the diplomatic and consular service For necessary expenses to enable the Secretary of State to meet unforeseen emergencies arising in the Diplomatic and Consular Service, as authorized, $7,885,000, to remain available until expended, of which not to exceed $1,000,000 may be transferred to, and merged with, funds appropriated by this Act under the heading Repatriation Loans Program Account . Repatriation loans program account For the cost of direct loans, $1,300,000, for the repatriation loans program referred to in section 4 of the State Department Basic Authorities Act of 1956 ( 22 U.S.C. 2671 ): Provided , That such costs, including the cost of modifying such loans, shall be as defined in section 502 of the Congressional Budget Act of 1974: Provided further , That the amounts made available by this Act for this heading are available to subsidize gross obligations for the principal amount of direct loans not to exceed $5,686,032. Payment to the american institute in taiwan For necessary expenses to carry out the Taiwan Relations Act ( Public Law 96–8 ), $31,963,000. International center, washington, district of columbia Not to exceed $1,806,600 shall be derived from fees collected from other executive agencies for lease or use of facilities at the International Center in accordance with section 4 of the International Center Act ( Public Law 90–553 ), and, in addition, as authorized by section 5 of such Act, $743,000, to be derived from the reserve authorized by such section, to be used for the purposes set out in that section. Payment to