; and the monitoring of such Web sites undertaken as part of official business. (c) Prohibition on promotion of tobacco None of the funds made available by this Act should be available to promote the sale or export of tobacco or tobacco products, or to seek the reduction or removal by any foreign country of restrictions on the marketing of tobacco or tobacco products, except for restrictions which are not applied equally to all tobacco or tobacco products of the same type. Availability of funds 7011. No part of any appropriation contained in this Act shall remain available for obligation after the expiration of the current fiscal year unless expressly so provided by this Act: Provided , That funds appropriated for the purposes of chapters 1 and 8 of part I, section 661, chapters 4, 5, 6, 8, and 9 of part II of the Foreign Assistance Act of 1961 , section 23 of the Arms Export Control Act , and funds provided under the headings Development Credit Authority and Assistance for Europe, Eurasia and Central Asia shall remain available for an additional 4 years from the date on which the availability of such funds would otherwise have expired, if such funds are initially obligated before the expiration of their respective periods of availability contained in this Act: Provided further , That the availability of funds pursuant to the previous proviso shall not be applicable to such funds until the Secretary of State submits the reports required under section 7011 of the Department of State, Foreign Operations, and Related Programs Appropriations Act, 2016 (division K of Public Law 114–113 ) and under section 7011 of the Department of State, Foreign Operations, and Related Programs Appropriations Act, 2017 (division J of Public Law 115–31 ): Provided further , That the Secretary of State shall provide a report to the Committees on Appropriations not later than October 30, 2018, detailing by account and source year, the use of this authority during the previous fiscal year. Limitation on assistance to countries in default