Article 15, paragraph 1, of the Convention provides that "Any Party may propose amendments to the Convention". Article 15, paragraph 2, of the Convention stipulates that "Amendments to the Convention shall be adopted at an ordinary session of the Conference of the Parties. The text of any proposed amendment to the Convention shall be communicated to the Parties by the secretariat at least six months before the meeting at which it is proposed for adoption. The secretariat shall also communicate proposed amendments to the signatories to the Convention and, for information, to the Depositary". In accordance with these provisions, Papua New Guinea and Mexico, by a letter dated 26 May 2011, transmitted to the secretariat the text of a proposal for an amendment to Articles 7 and 18 of the Convention. Pursuant to Article 15, paragraph 2, of the Convention, the secretariat transmitted this proposal to Parties and signatories to the Convention by a note verbale dated 30 May 2011 and, for information, to the Depositary by a letter dated 22 June 2011. The proposal is contained in document FCCC/CP/2011/4. Papua New Guinea and Mexico, by a letter dated 8 December 2011, submitted an amendment to their proposal. The letter and revised proposal are annexed hereto