The Management Board shall elect a Chairperson and a Deputy Chairperson from among its members, by a majority of two thirds of the members. Their terms of office shall be four years, which shall be renewable once. If, however, their membership of the Management Board ends at any time during their term of office, their term of office shall automatically expire on that date. The Deputy Chair shall replace the Chairperson ex officio if the Chairperson is unable to attend to his or her duties.