Southem African Development Community 3. This Protocol shall be amended only when it has entered into force. 4. An amendment to this Protocol shall be adopted by a decision of three-quarters of the Member States that are Parties to this Protocol. 5. This Protocol shall be amended in accordance with Article 22 of the Treaty. ARTICLE 30 SIGNATURE This Protocol shall be signed by the duly authorised representatives of Member States. ARTICLE 31 RATIFICATION This Protocol shall be ratified by the signatory States in accordance with their constitutional procedures. ARTICLE 32 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 33 ACCESSION This Protocol shall remain open for accession by any Member State. ARTICLE 34 DEPOSITARY 1. The original texts of this Protocol and all instruments of Ratification and Accession shall be deposited with the Executive Secretary, who shall transmit certified copies to all the Member States. 2. The Executive Secretary shall notify the Member States of the dates on which Instruments of Ratification and Accession have been deposited under paragraph 1. Protocol on Employment and Labour -27