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1. As soon as twelve of the signatory States have deposited their instruments of ratification of this Convention, it shall come into force between them on the ninetieth day after the date of the deposit of the twelfth instrument of ratification. It shall come into force for each State ratifying thereafter on the ninetieth day after the deposit of its instrument of ratification.
2. As soon as this Convention comes into force, it shall be registered with the Secretary-General of the United Nations by the International Civil Aviation Organization.