A/RES/54/4 Page 7 2. For each State ratifying the present Protocol or acceding to it after its entry into force, the present Protocol shall enter into force three months after the date of the deposit of its own instrument of ratification or accession. Article 17 No reservations to the present Protocol shall be permitted. Article 18 1. Any State Party may propose an amendment to the present Protocol and file it with the Secretary-General of the United Nations. The Secretary-General shall thereupon communicate any proposed amendments to the States Parties with a request that they notify her or him whether they favour a conference of States Parties for the purpose of considering and voting on the proposal. In the event that at least one third of the States Parties favour such a conference, the Secretary-General shall convene the conference under the auspices of the United Nations. Any amendment adopted by a majority of the States Parties present and voting at the conference shall be submitted to the General Assembly of the United Nations for approval. 2. Amendments shall come into force when they have been approved by the General Assembly of the United Nations and accepted by a two-thirds majority of the States Parties to the present Protocol in accordance with their respective constitutional processes. 3. When amendments come into force, they shall be binding on those States Parties that have accepted them, other States Parties still being bound by the provisions of the present Protocol and any earlier amendments that they have accepted. Article 19 1. Any State Party may denounce the present Protocol at any time by written notification addressed to the Secretary-General of the United Nations. Denunciation shall take effect six months after the date of receipt of the notification by the Secretary-General. 2. Denunciation shall be without prejudice to the continued application of the provisions of the present Protocol to any communication submitted under article 2 or any inquiry initiated under article 8 before the effective date of denunciation. Article 20 The Secretary-General of the United Nations shall inform all States of: (a) Signatures, ratifications and accessions under the present Protocol; (b) The date of entry into force of the present Protocol and of any amendment under article 18; (c) Any denunciation under article 19. /...