Artikel XV

a). Any Party may propose amendments to this Agreement. Proposed amendments shall be submitted to the executive organ, which shall distribute them promptly to all Parties.
b). The Assembly of Parties shall consider each proposed amendment at its first ordinary meeting following its distribution by the executive organ, or at an earlier extraordinary meeting convened in accordance with the procedures of Article IX of this Agreement, provided that the proposed amendment has been distributed by the executive organ at least ninety days before the opening date of the meeting.
c). The Assembly of Parties shall take decisions on each proposed amendment in accordance with the provisions relating to quorum and voting contained in Article IX of this Agreement. It may modify any proposed amendment, distributed in accordance with paragraph (b) of this Article, and may also take decisions on any amendment not so distributed but directly consequential to a proposed or modified amendment.
d). An amendment which has been approved by the Assembly of Parties shall enter into force in accordance with paragraph (e) of this Article after the Depositary has received notice of approval, acceptance or ratification of the amendment from two-thirds of the States which were Parties as of the date upon which the amendment was approved by the Assembly of Parties.
e). The Depositary shall notify all the Parties as soon as it has received the acceptances, approvals or ratifications required by paragraph (d) of this Article for the entry into force of an amendment. Ninety days after the date of issue of this notification, the amendment shall enter into force for all Parties, including those that have not yet accepted, approved, or ratified it and have not withdrawn from ITSO.
f). Notwithstanding the provisions of paragraphs (d) and (e) of this Article, an amendment shall not enter into force less than eight months after the date it has been approved by the Assembly of Parties.