Section 1. The first elections of Members of the Congress under this Constitution shall be held on the second Monday of May, 1987. The first local elections shall be held on a date to be determined by the President, which may be simultaneous with the election of the Members of the Congress. It shall include the election of all Members of the city or municipal councils in the Metropolitan Manila area. Section 2. The Senators, Members of the House of Representatives, and the local officials first elected under this Constitution shall serve until noon of June 30, 1992. Of the Senators elected in the elections in 1992, the first twelve obtaining the highest number of votes shall serve for six years and the remaining twelve for three years. Section 3. All existing laws, decrees, executive orders, proclamations, letters of instructions, and other executive issuances not inconsistent with this Constitution shall remain operative until amended, repealed, or revoked. Section 4. All existing treaties or international agreements which have not been ratified shall not be renewed or extended without the concurrence of at least two-thirds of all the Members of the Senate. Section 5. The six-year term of the incumbent President and Vice-President elected in the February 7, 1986 election is, for purposes of synchronization of elections, hereby extended to noon of June 30, 1992. The first regular elections for the President and Vice-President under this Constitution shall be held on the second Monday of May, 1992. Section 6. The incumbent President shall continue to exercise legislative powers until the first Congress is convened. Section 7. Until a law is passed, the President may fill by appointment from a list of nominees by the respective sectors, the seats reserved for sectoral representation in paragraph (2), Section 5 of Article V1 of this Constitution. Section 8. Until otherwise provided by the Congress, the President may constitute the Metropolitan Manila Authority to be composed of the heads of all local government units comprising the Metropolitan Manila area. Section 9. A sub-province shall continue to exist and operate until it is converted into a regular province or until its component municipalities are reverted to the mother province. Section 10. All courts existing at the time of the ratification of this Constitution shall continue to exercise their jurisdiction, until otherwise provided by law. The provisions of the existing Rules of Court, judiciary acts, and procedural laws not inconsistent with this