12. Encourages effective contributions from, and the active participation of, all major groups, as identified in Agenda 21, at all stages of the preparatory process, in accordance with the rules and procedures of the Commission on Sustainable Development, as well as its established practices related to the participation and engagement of major groups;
12. 鼓励《21世纪议程》指明的各主要群组，根据可持续发展委员会的规则和程序及其关于各主要群组参与和投入的既定惯例，作出有效贡献并积极参与筹备进程各个阶段；