The report follows an earlier UN-Water report presented to the 16th session of the CSD in 2008 which primarily took stock of the development and implementation of Integrated Water Resources Management and Water Efficiency Plans, as required in the 2002 Johannesburg Plan of Implementation (JPoI). The present report is more extensive, covering more countries and addressing the development,  management and uses of water resources, as well as the possible outcomes and impacts of integrated approaches. It is based on a 2011 UN-Water survey sent to the governments of all UN member states and a series of complementary interviews in 30 representative countries.