Chapter Fifteen LANGUAGE ARTICLE 37 The working languages of SADC shall be English and Portuguese and such other languages as the Council may determine. Chapter Sixteen SAVING PROVISIONS ARTICLE 38 A Sectoral Committee, Sector Coordinating Unit or any other institution, obligation or arrangement of the Southern African Development Coordination Conference which exists immediately before the coming into force of this Treaty, shall to the extent that it is not inconsistent with the provisions of this Treaty, continue to subsist, operate or bind Member States or SADC as if it were established or undertaken under this Treaty, until the Council or Summit determines otherwise. Chapter Seventeen SIGNATURE, RATIFICATION, ENTRY INTO FORCE, ACCESSION AND DEPOSITARY ARTICLE 39 SIGNATURE This Treaty shall be signed by the High Contracting Parties. ARTICLE 40 RATIFICATION This treaty shall be ratified by the Signatory States in accordance with their constitutional procedures. ARTICLE 41 ENTRY INTO FORCE This Treaty shall enter into force thirty (30) days after the deposit of the instruments of ratification by two-third of the States listed in the Preamble. ARTICLE 42 ACCESSION This Treaty shall remain open for accession by any state subject to Article 8 of this Treaty. ARTICLE 43 DEPOSITARY 1. The original texts of this Treaty and Protocols 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.