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1. This Convention is subject to ratification, acceptance or approval by States and by Namibia, represented by the United Nations Council for Namibia, and to acts of formal confirmation by regional economic integration organizations referred to in article 26, subparagraph (c). The instruments of ratification, acceptance or approval and those relating to acts of formal confirmation shall be deposited with the Secretary-General.
2. In their instruments of formal confirmation, regional economic integration organizations shall declare the extent of their competence with respect to the matters governed by this Convention. These organizations shall also inform the Secretary-General of any modification in the extent of their competence with respect to the matters governed by the Convention.