The standardization of septic tank emptying methods is a major concern for the Beninese government. In Abomey-calavi, Cotonou and Porto Novo, 35 sewage sludge operators had their methods and tools controlled by a joint mission consisting of a representative of the Ministry of Health, the focal point of the municipality of Cotonou and a representative of the office of the Beninese sewers' association. The objective of this supervision visit was to ensure the effective implementation of the "Mimin Emptying" quality standards by the emptyers in order to upgrade them. These include, among other things, the quality of the emptying service, price compliance and the wearing of personal protective equipment. Vidange Mimin is an innovative service that connects households via a telephone platform that allows them to easily access sewage sludge trucks. This service is implemented as part of the Sanitation Service Delivery (SSD) urban sanitation project.