2. An amendment adopted in accordance with paragraph 1 of the present article shall enter into force when it has been approved by the General Assembly and accepted by a two-thirds majority of States Parties. 3. When an amendment enters into force, it shall be binding on those States Parties that have accepted it, other States Parties still being bound by the provisions of the present Protocol and any earlier amendments they have accepted. Article 13 1. The present Protocol, of which the Arabic, Chinese, English, French, Russian and Spanish texts are equally authentic, shall be deposited in the archives of the United Nations. 2. The Secretary-General of the United Nations shall transmit certified copies of the present Protocol to all States Parties to the Convention and all States that have signed the Convention.