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1. This Convention shall be subject to ratification, acceptance or approval by Member States of UNESCO.
2. This Convention shall be subject to accession:
a) by States that are not members of UNESCO but are members of the United Nations or of a specialized agency within the United Nations system or of the International Atomic Energy Agency, as well as by States Parties to the Statute of the International Court of Justice and any other State invited to accede to this Convention by the General Conference of UNESCO;
b) by territories which enjoy full internal self-government, recognized as such by the United Nations, but have not attained full independence in accordance with General Assembly resolution 1514 (XV) and which have competence over the matters governed by this Convention, including the competence to enter into treaties in respect of those matters.
3. The instruments of ratification, acceptance, approval or accession shall be deposited with the Director-General.