Artikel 24

After this Convention has been in force for five years, any Contracting Party may, by notification to the Secretary-General of the United Nations, request that a conference be convened for the purpose of reviewing the Convention, indicating the proposals which should be dealt with by the conference. In such a case:
(i) The Secretary-General of the United Nations shall notify all the Contracting Parties of the request and invite them to submit, within a period of three months, their comments on the original proposals and such other proposals as they may wish the conference to consider;
(ii) The Secretary-General of the United Nations shall also communicate to all the Contracting Parties the text of any other proposals made and shall convene a review conference if, within a period of six months from the date of that communication, not less than one third of the Contracting Parties notify the Secretary-General of the United Nations of their concurrence with the convening of such a conference;
(iii) However, if the Secretary-General of the United Nations considers that a review proposal may be regarded as a proposed amendment under paragraph 1 of article 22, he may, by agreement with the Contracting Party which has made the proposal, implement the amendment procedure provided for by article 22 instead of the review procedure.