This study was undertaken as part of the CGIAR reform program, part of which was aimed at streamlining System governance. The CGIAR Annual General Meeting 2002 agreed to commission an independent, external review of both the Non Governmental Organization Committee (NGOC) and the Private Sector Committee (PSC). The terms of reference for the study asks two questions: 1) how successful have the Committees been in achieving their mission? and 2) are there alternative ways in which the CGIAR could achieve the Committees' mission more efficiently? The evaluation recognized that the two committee experiment in partnerships was generally disappointing to all parties but it nevertheless wishes to underscore the importance of persevering with the experiment. The report underlines the importance for strong relationships between the CGIAR system and international Civil Society as well as the relationship between the CGIAR system and the international private sector. The report was discussed at the 6th Executive Council Meeting of the CGIAR, in May 2004, Montpellier, France. It was also discussed at the Stakeholders Meeting at AGM2004.