In order to facilitate the work of the eighth meeting of the Conference of the Parties to the Vienna Convention and the Twentieth Meeting of the Parties to the Montreal Protocol, the Secretariat has prepared the present document, which contains three chapters.
为了便利《维也纳公约》缔约方会议第八次会议和《蒙特利尔议定书》缔约方第二十次会议开展工作，秘书处编制了本文件，内容共三章。