; and (ii) shall be filled in the same manner as the original appointment. (4) Chairperson The members of the Board of Advisors shall elect 1 member to serve as the chairperson of the Board of Advisors. (5) Meetings (A) Initial meeting Not later than 180 days after the date of enactment of the Endless Frontier Act, the Board of Advisors shall hold the first meeting of the Board of Advisors. (B) Additional meetings After the first meeting of the Board of Advisors, the Board of Advisors shall meet upon the call of the chairperson or of the Director, and at least once every 180 days for the duration of the Board of Advisors. (C) Meeting with the national science board The Board of Advisors shall hold a joint meeting with the National Science Board on at least an annual basis, on a date mutually selected by the Chairperson of the Board of Advisors and the Chairman of the National Science Board. (D) Quorum A majority of the members of the Board of Advisors shall constitute a quorum, but a lesser number of members may hold hearings. (6) Duties of board of advisors (A) In general The Board of Advisors shall provide advice— (i) to the Deputy Director on programs that could best be carried out to accomplish the purposes of this section; (ii) to the Deputy Director to inform the reviews of key technology focus areas required under subsection (c)(2)(B)