or (III) shall be able to credibly represent the views of the United States business community. (III) At least 1 member who is not described in subclause (I) or (II) shall have demonstrable experience as a United States diplomat. (3) Deadline for initial appointments Each appointing authority referred to in paragraph (2) shall make all initial appointments required by such paragraph not later than January 1, 2024. (4) Vacancies Not later than 30 days after the date on which a vacancy on the Advisory Board occurs, the vacancy shall be filled in the same manner as specified for the original appointment under paragraph (2), and the individual so appointed shall serve the remainder of the unexpired term. (5) Replacement appointments Not later than 30 days after the date on which the term of a member of the Advisory Board expires, the appointing authority that appointed such member shall appoint the member’s replacement. (d) Terms (1) In general Except as provided in paragraph (2), all members appointed to the Advisory Board shall have a term of 6 years. (2) Initial terms (A) Appointments by the Speaker of the House of Representatives and Senate leader of same party Of the initial members appointed under subsection (c)(2)(A), 1 shall have a term of 2 years and 1 shall have a term of 4 years, as designated by the Speaker and leader referred to in such subsection at the time of appointment. (B) Appointments by minority leader of the House of Representatives and Senate leader of same party Of the initial members appointed under subsection (c)(2)(B), 1 shall have a term of 2 years and 1 shall have a term of 4 years, as designated by the leaders referred to in such subsection at the time of appointment. (C) Appointments by the President Of the initial members appointed under subsection (c)(2)(C), 2 shall have a term of 2 years and 2 shall have a term of 4 years, as designated by the President at the time of appointment. (D) Appointments by Secretary of State Of the initial members appointed under subsection (c)(2)(D), at