Versions of Provision
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10. When an amendment has been adopted but the eighteen-month period for its acceptance has not yet expired, a State which becomes a Contracting State during that period shall be bound by the amendment if it enters into force. A State which becomes a Contracting State after that period shall be bound by an amendment which has been accepted in accordance with paragraph 7. In the cases referred to in this paragraph, a State becomes bound by an amendment when that amendment enters into force, or when this Protocol enters into force for that State, if later.