5. The Commission shall consist of(a) the director of public libraries of Québec who shall be a member thereof ex officio and whose appointment is provided for in section 11;
(b) six other members selected for the interest that they take in the development of libraries and who shall be appointed by the Government for six years. Their mandate may be renewed. By exception, at the end of the first three-year period, three members appointed by the Government shall retire. At the end of each three-year period, the Government shall fill the vacancies in the Commission.