31. 主席团请主席写信给委员会全体成员，通知它们届会的日期并提醒它们届会的主题，欢迎他们就哪些议程项目进行干预提出建议，告知如何获取届会的初步文件，并强调应有技术专家参加代表团。此外，主席将向委员会成员介绍主旨发言人和小组成员，通报关于提案草案非正式协商的日期，以及关于这些磋商的其他相关信息。
31. The Bureau requested that the Chair write to all members of the Commission to inform them of the dates of the session and to remind them of the special theme, suggesting under which agenda item interventions were welcome, informing them about how to access preliminary versions of the documentation for the session and underscoring the desirability of having technical experts as part of their delegations. In addition, the Chair would inform members of the Commission about the keynote speakers and panellists and about the dates for the informal consultations on draft proposals and any other relevant information concerning those consultations.