Artikel 17

1. Any amendment to the Appendices of this Convention proposed by a Contracting Party or the Committee of Ministers shall be communicated to the Secretary General of the Council of Europe and forwarded by him at least two months before the meeting of the Standing Committee to the member States of the Council of Europe, to any signatory, to any Contracting Party, to any State invited to sign this Convention in accordance with the provisions of Article 19 and to any State invited to accede to it in accordance with the provisions of Article 20.
2. Any amendment proposed in accordance with the provisions of the preceding paragraph shall be examined by the Standing Committee, which may adopt it by a two-thirds majority of the Contracting Parties. The text adopted shall be forwarded to the Contracting Parties.
3. Three months after its adoption by the Standing Committee and unless one-third of the Contracting Parties have notified objections, any amendment shall enter into force for those Contracting Parties which have not notified objections.