United Nations Economic Commission for Europe (UNECE)United Nations Environment Programme (UNEP)(United Nations Economic Commission for Europe (UNECE), 1990)
United Nations Economic and Social Commission for Asia and the Pacific (UNESCAP)(United Nations Economic and Social Commission for Asia and the Pacific (UNESCAP), 1998)
Ministry of Transport, Public Works and Water Management of the Netherlands(Ministry of Transport, Public Works and Water Management of the Netherlands, 2000-12)
United Nations Environment Programme (UNEP) Global Environment Monitoring System (GEMS) Water Programme(United Nations Environment Programme (UNEP) Global Environment Monitoring System (GEMS) Water Programme, 2004)
United Nations Environment Programme (UNEP)Global Environment Monitoring System (GEMS) Water Programme(Global Environment Monitoring System (GEMS) Water Programme, 2004)
United Nations Environment Programme (UNEP) Finance InitiativeStockholm International Water Institute (SIWI)(United Nations Environment Programme (UNEP) Finance Initiative, 2004)