The committee member’s term of office shall be two years. Appointment of the first members shall be made so that the terms of office of three members shall expire at the end of one year and three at the end of two years. Thereafter, appointment shall be for full two-year terms. Each committee member shall be limited to four consecutive terms in office. Any vacancies which occur during an unexpired term shall be filled for the unexpired term following the same procedure used for initially nominating and appointing members.