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1. This Convention shall be open at United Nations Headquarters, New York, until 31 December 1969 for signature by all States Members of the United Nations or of any of the specialized agencies or of the International Atomic Energy Agency or Parties to the Statute of the International Court of Justice, and by any other State invited by the General Assembly of the United Nations to become a Party to the Convention.
2. This Convention is subject to ratification. The instruments of ratification shall be deposited with the Secretary-General of the United Nations.
3. This Convention shall remain open for accession by any of the States referred to in paragraph 1 of this Article. The instruments of accession shall be deposited with the Secretary-General.