A/RES/57/270 commitments agreed upon at the Millennium Summit and other major United Nations conferences and summits, so as to enhance coordination as well as effectiveness and efficiency of actions at all levels, Reiterating the need to strengthen the role of the General Assembly as the highest intergovernmental mechanism for the formulation and appraisal of policy on matters relating to coordinated and integrated follow-up to United Nations conferences and summits in the economic, social and related fields, Reaffirming that the Economic and Social Council should continue to strengthen its role as the central mechanism for system-wide coordination and thus to promote coordinated follow-up to the outcomes of major United Nations conferences in the economic, social and related fields, Emphasizing that the relevant functional commissions and, as appropriate, other relevant intergovernmental bodies of the United Nations system, within their mandates, must fulfil their responsibilities as specified in the outcomes of the United Nations conferences and summits, should further enhance their role as the main forums for expert follow-up and review of major United Nations conferences and summits and, in this regard, must strengthen their efforts to enhance interagency collaboration and coordination to implement the outcomes of the major United Nations conferences and summits, Recognizing that the process of integrated and coordinated follow-up to the outcomes of the major United Nations conferences and summits should not include renegotiation of any outcomes of those conferences, including their specific institutional arrangements for follow-up, 1. Decides to establish an open-ended ad hoc working group of the General Assembly under the chairmanship of the President of the Assembly, with two vicechairmen to be elected by the working group; 2. Also decides that the work of the working group should be consistent with the provisions of resolution 50/227 and the follow-up mechanisms decided upon by the respective United Nations conferences and summits and should respect the interlinked nature of their outcomes as well as the thematic unity of each conference, and emphasizes that cross-sectoral thematic issues for further consideration throughout the existing structure should be decided upon at the intergovernmental level and should focus on implementation, bearing in mind that the process of integrated and coordinated follow-up to the outcomes of the United Nations conferences and summits in the economic, social and related fields should be fair and balanced and should respect the principle of multilateralism and the principles contained in the Charter of the United Nations; 3. Further decides that the working group will produce concrete recommendations to ensure an integrated and coordinated follow-up to the outcomes of the United Nations conferences and summits in the economic, social and related fields and will thus contribute to the implementation of the internationally agreed development goals, including those contained in the United Nations Millennium Declaration,2 bearing in mind the continuing reform process of the United Nations and resolution 50/227, as well as the views expressed by the Member States on this question; 4. Decides that the working group will also consider the work of the General Assembly and its Second and Third Committees relevant to the integrated and coordinated implementation of and follow-up to the outcomes of the major United Nations conferences and summits in the economic, social and related fields 2