; and (ii) for purposes of this subparagraph, an individual who is appointed to fill a vacancy under subparagraph (E) shall not be considered to have served a term if the portion of the unexpired term the individual fills is less than 50 percent of the period of the term. (E) Vacancies Any vacancy occurring in the membership of the Commission shall be filled in the same manner as in the case of the original appointment. Except as provided in subparagraph (D), an individual appointed to fill a vacancy occurring other than by the expiration of a term of office shall be appointed only for the unexpired term of the member he or she succeeds. (F) Limitation on service after expiration of term A member of the Commission may continue to serve on the Commission after the expiration of the member’s term for an additional period, but only until the earlier of— (i) the date on which the member’s successor has taken office as a member of the Commission