Volume I of the Guidelines for the Safe Use of Wastewater, Excreta and Greywater focuses on policy, regulation and institutional arrangements. Accordingly, its intended readership is made up of policy-makers and those with regulatory responsibilities. It provides guidance on policy formulation, harmonisation and mainstreaming, on regulatory mechanisms and on establishing institutional links between the various interested sectors and parties. It also presents a synthesis of the key issues from Volumes II, III, and IV and the index for all four volumes as well as a glossary of terms used in all four volumes is presented in Annex 1.
WHO (2006): Guidelines for the safe use of wastewater excreta and greywater. Volume I. Policy and Regulatory Aspects. Geneva: World Health Organisation URL [Accessed: 10.04.2019]