under subparagraph (A) shall appoint the Chair under subsection (a)(1)(F) not later than 10 days after the date the members are so appointed. (C) Term A member appointed under subparagraph (A) shall serve on the Commission for a term of 4 years. A member so appointed may serve after the expiration of that member’s term until a successor has taken office. (3) Vacancies A vacancy in the Commission shall be filled in the manner in which the original appointment was made, not later than 30 days after the vacancy occurs. Any member appointed to fill a vacancy occurring before the expiration of the term for which the member’s predecessor was appointed shall be appointed only for the remainder of that term. (c) Criteria for appointment (1) In general Each member appointed to the Commission under subparagraphs (A) through (D) of subsection (a)(1) shall be a physician. Of the two members appointed by each individual under such paragraphs, one shall be a physician with a specialty in psychiatry. The Chair shall be a physician or an individual who meets the requirements of subsection (a)(1)(E)(iii), or both. In this paragraph, the term physician means a doctor of medicine licensed to practice medicine, surgery, or osteopathy in a State. (2) Limitations A member appointed under subsection (a) may not, at the time the member is appointed or serving as a member on the Commission, be— (A) an elected official to any Federal, State, or local office