; and (II) have, or be able to obtain within a reasonable period of time, a security clearance appropriate for the work of the Board of Advisors. (ii) Expedited security clearances The process of obtaining a security clearance under clause (i)(II) may be expedited by the head of the appropriate Federal agency to enable the Board to receive classified briefings on the current and future technological capacity of other Nations, and on the military implications of civilian technologies. (D) Date The appointments of the members of the Board of Advisors shall be made not later than 90 days after the date of enactment of the Endless Frontier Act. (3) Period of appointment; vacancies (A) In general A member of the Board of Advisors shall be appointed for a 3-year term, except that the Deputy Director shall adjust the terms for the first members of the Board of Advisors so that, within each appointment category described in clauses (i) through (v) of paragraph (2)(A), the terms expire on a staggered basis. (B) Term limits A member of the Board of Advisors shall not serve for more than 2 full consecutive terms. (C) Vacancies Any vacancy in the Board of Advisors— (i) shall not affect the powers of the Board of Advisors