UNICEF has carried out sustainability checks of their water and sanitation programmes in East and West Africa, and in Asia. This presentation reviews what these checks have in common, the methods used and disparities in data aggregation. Key results for water supply (functionality rates and service provider performance) and sanitation (latrine functionality and open defecation) are provided. It concludes with an overview of the impact of conducting sustainability checks and recommendations on the methodology and and use. Presented by Julia Boulenouar (Aguaconsult) at the IRC Event "Checking and monitoring sustainability of Water, Sanitation and Hygiene (WASH) services" in The Hague, The Netherlands on 16 November 2016,