; and (ii) such other specific expertise as the Secretary considers necessary, such as technical expertise, public safety communications expertise, or commercial network experience. (2) Non-voting members The Assistant Secretary and the Administrator of the National Highway Traffic Safety Administration shall each have the authority to appoint 1 non-voting member to the Board. (3) Period of appointment (A) In general Except as provided in subparagraph (B), each member of the Board shall be appointed for the life of the Board. (B) Removal for cause A member of the Board may be removed for cause upon the determination of the Office. (4) Vacancies A vacancy in the membership of the Board— (A) shall not affect the powers of the Board