12. Decides that the preparatory meeting shall be open-ended and shall be held in accordance with the rules of procedure of the functional commissions of the Economic and Social Council and the supplementary arrangements established for the Commission on Sustainable Development by the Council in its decisions 1993/215 of 12 February 1993 and 1995/201 of 8 February 1995, applied to all Member States and other participants, as was the practice in the preparatory committee for the World Summit on Sustainable Development, while maintaining the provisions of the Commission in relation to travel assistance, in accordance with the provisions of Economic and Social Council decision 2003/283 of 24 July 2003;
12. 决定一如可持续发展问题世界首脑会议筹备会议的做法，国际会议的筹备会议将不限成员名额，经济及社会理事会职司委员会议事规则以及理事会1993年2月12日第1993/215和1995年2月8日第1995/201号决定为可持续发展委员会制订的补充安排适用于所有会员国和其他参加者，同时根据经济及社会理事会2003年7月24日第2003/283号决定的规定，保持委员会有关旅行援助的规定；