; vacancies The President, Speaker of the House of Representatives, minority leader of the House of Representatives, majority leader of the Senate, and minority leader of the Senate shall conduct the consultation under subparagraph (A) and make their respective appointments not later than 60 days after the date of enactment of this Act. (4) Vacancies A vacancy in the membership of the Commission shall not affect the powers of the Commission and shall be filled in the same manner as the original appointment not later than 30 days after the vacancy occurs. (c) Meetings (1) Initial meeting Not later than 30 days after the date on which all members of the Centennial Commission have been appointed, the Centennial Commission shall hold its first meeting. (2) Subsequent meetings (A) In general The Centennial Commission shall meet at the call of the Chair. (B) Frequency The Chair shall call a meeting of the members of the Centennial Commission not less frequently than once every 6 months. (3) Quorum Seven members of the Centennial Commission shall constitute a quorum, but a lesser number may hold hearings. (4) Chair and vice chair The Centennial Commission shall select a Chair and Vice Chair from among its members. 4. Duties of Centennial Commission (a) In general The duties of the Centennial Commission are as follows: (1) To encourage, plan, develop, and execute programs, projects, and activities to commemorate the centennial of the passage and ratification of the 19th Amendment. (2) To encourage private organizations and State and local governments to organize and participate in activities commemorating the centennial of the passage and ratification of the 19th Amendment. (3) To facilitate and coordinate activities throughout the United States relating to the centennial of the passage and ratification of the 19th Amendment. (4) To serve as a clearinghouse for the collection and dissemination of information about events and plans for the centennial of the passage and ratification of the 19th Amendment. (5) To develop