1. Any Party may propose an amendment to this Convention. The text of any such amendment and the reasons therefore shall be communicated to the Secretary-General, who shall communicate them to the Parties and to the Council. The Council may decide either:

(a) That a conference shall be called in accordance with paragraph 4 of Article 62 of the Charter of the United Nations to consider the proposed amendment; or

(b) That the Parties shall be asked whether they accept the proposed amendment and also asked to submit to the Council any comments on the proposal.

2. If a proposed amendment circulated under paragraph 1 (b) has not been rejected by any Party within eighteen months after it has been circulated, it shall thereupon enter into force. If however a proposed amendment is rejected by any Party, the Council may decide, in the light of comments received from Parties, whether a conference shall be called to consider such amendment.