defense services, or design and construction services that are not sold by the United States Government under the Arms Export Control Act: Provided further , That funds appropriated under this heading shall be expended at the minimum rate necessary to make timely payment for defense articles and services: Provided further , That not more than $80,000,000 of the funds appropriated under this heading may be obligated for necessary expenses, including the purchase of passenger motor vehicles for replacement only for use outside of the United States, for the general costs of administering military assistance and sales, except that this limitation may be exceeded only through the regular notification procedures of the Committees on Appropriations: Provided further , That of the funds made available under this heading for general costs of administering military assistance and sales, not to exceed $4,000 may be available for entertainment expenses and not to exceed $130,000 may be available for representation expenses: Provided further , That not more than $950,000,000 of funds realized pursuant to section 21(e)(1)(A) of the Arms Export Control Act may be obligated for expenses incurred by the Department of Defense during fiscal year 2018 pursuant to section 43(b) of the Arms Export Control Act, except that this limitation may be exceeded only through the regular notification procedures of the Committees on Appropriations. V Multilateral assistance International financial institutions Contribution to the international development association For payment to the International Development Association by the Secretary of the Treasury, $658,661,000, to remain available until September 30, 2019. Contribution to the asian development fund For payment to the Asian Development Bank's Asian Development Fund by the Secretary of the Treasury, $47,395,000, to remain available until September 30, 2019. Contribution to the african development bank For payment to the African Development Bank by the Secretary of the Treasury for the