The tool is developed to determine faecal waste volumes along the entire sanitation service chain, allowing city planners, service authorities or any other users to determine where the biggest losses are and where interventions should be targeted. Less easily quantifiable issues such as the existence of policies and legislation, availability and transparency of plans and budgets, presence and adherence to environmental and safety standards are captured with the use of score cards. The downloadable version is an excel-file with macros (betaversion) and accessible from the website of IRCWash (see link).