MEMBERSHIP ARTICLE 7 MEMBERSHIP States listed in the Preamble hereto shall, upon signature and ratification of this Treaty, be members of SADC. ARTICLE 8 ADMISSION OF NEW MEMBERS 1. Any state not listed in the Preamble to this Treaty may become a member of SADC upon being admitted by the existing members and acceding to this Treaty. 2. The admission of any such state to membership of SADC shall be effected by a unanimous decision of the Summit. 3. The Summit shall determine the procedures for the admission of new members and for accession to this Treaty by such members. 4. Membership of SADC shall not be subject to any reservations. Chapter Five INSTITUTIONS ARTICLE 9 ESTABLISHMENT OF INSTITUTIONS 1. The following Institutions are hereby established: a) The Summit of Heads of State or Government; b) The Council of Ministers; c) Commissions; d) The Standing Committee of Officials; e) The Secretariat; and f) The Tribunal. 2. Other institutions may be established as necessary. ARTICLE 10 THE SUMMIT 1. The Summit shall consist of the Heads of State or Government of all Member States, and shall be the supreme policy-making Institution of SADC. 2. The Summit shall be responsible for the overall policy direction and control of the functions of SADC. 3. The Summit shall adopt legal instruments for the implementation of the provisions of this Treaty; provided that the Summit may delegate this authority to the Council or any other institution of SADC as the Summit may deem appropriate.