congressional intelligence committees, the Committee on Appropriations of the Senate, and the Committee on Appropriations of the House of Representatives of such appointment in writing. (5) Terms (A) In general Except as provided in subparagraph (B), each member of the Board shall be appointed for a term of 2 years. (B) Vacancies A member of the Board appointed to fill a vacancy occurring before the expiration of the term for which the predecessor of the member was appointed shall be appointed only for the remainder of that term. A vacancy in the Board shall not affect the powers of the Board and shall be filled in the manner in which the original appointment was made. (C) Reappointments A member of the Board may not be reappointed for an additional term, unless the Director of National Intelligence certifies to the congressional intelligence committees, the Committee on Appropriations of the Senate, and the Committee on Appropriations of the House of Representatives that reappointment for a single additional term is vital to the completion of an ongoing project or initiative of the Board. (6) Prohibition on compensation Members of the Board shall serve without pay. (7) Travel expenses Each member of the Board may reimbursement of reasonable travel expenses, subject to a process established by the Director and in accordance with applicable provisions under subchapter I of chapter 57 of title 5, United States Code. (8) Meetings (A) In general The Board shall meet as necessary to carry out its purpose and duties under this section, but shall meet in person not less frequently than on a quarterly basis. A majority of the members of the Board shall constitute a quorum. (B) Closed meetings Meetings of the Board may be closed to the public only to protect national security. (d) Staff (1) Composition To the extent and in such amounts as specifically provided in advance in appropriations Act for the purposes detailed in this section, the Board shall be supported by full-time staff with requisite experience to assist the