ARTICLE 11 RATIFICATION This Protocol shall be ratified by the signatory Member States in accordance with their respective Constitutional process. ARTICLE 12 ENTRY INTO FORCE This Protocol shall enter into force thirty (30) days after the deposit of the instruments of ratification by two-thirds of the Member States. ARTICLE 13 ACCESSION This Protocol shall remain open for accession by any Member State. ARTICLE 14 RESERVATIONS No reservations shall be made to this Protocol. ARTICLE 15 WITHDRAWAL 1. Any State Party wishing to withdraw from this Protocol shall give to the Executive Secretary 12 months' written notice of its intention. Withdrawal shall be effective on the date of expiration of the notice period. 2. Any State Party withdrawing from this Protocol shall (a) cease to enjoy all rights and benefits under this Protocol from the effective date of the withdrawal; (b) remain bound to the obligations assumed under this Protocol until the withdrawal takes effect. ARTICLE 16 DEPOSITARY 1. The original text of this Protocol and all instruments of ratification and accession shall be deposited with the Executive Secretary of SADC who shall transmit certified copies to all Member States. 2. The Executive Secretary of SADC shall register this Protocol with the Secretariat of the United Nations and the Organisation of African Unity.