Artikel 23

1. At any time after the second regular session of the Conference any Member may propose amendments to this Constitution. Texts of proposed amendments shall be promptly communicated by the Director-General to all Members and shall not be considered by the Conference until ninety days after the dispatch of such communication.
2. Except as specified in paragraph 3, an amendment shall come into force and be binding on all Members when:
(a) It is recommended by the Board to the Conference:
(b) It is approved by the Conference by a two-thirds majority of all Members; and
(c) Two-thirds of the Members have deposited instruments of ratification, acceptance or approval of the amendment with the Depositary.
3. An amendment relating to Article 6, 9, 10, 13, 14 or 23 or to Annex II shall come into force and be binding on all Members when:
(a) It is recommended by the Board to the Conference by a two-thirds majority of all members of the Board;
(b) It is approved by the Conference by a two-thirds majority of all Members; and
(c) Three-fourths of the Members have deposited instruments of ratification, acceptance or approval of the amendment with the Depositary.