||The management of solid household waste is a big problem in the city of Cotonou. This study aims to take stock of the management of solid household waste in Cotonou after three terms of decentralization practice. The methodological approach is based on documentary research, field surveys, data processing. The field survey involved 2 officials of COGEDA, 50% of heads of SMEs, 4 officials of the DST (Town Hall / Cotonou) and 5 officials of the waste management and sanitation company in "Grand Nokoué". The application of this methodology produced the following results:
Taking into account decentralized urban management mechanisms, from 2001 to 2019, the option chosen by municipal authorities in terms of solid waste management is to "do-do" with obligation of results. It is based on two basic principles, which are participatory and shared management. The amount of waste produced per day in Cotonou is 1000 kg, and the removal rate is 500 kg. Indeed, 85% of the waste produced in Cotonou is convertible against 15% which is ultimate waste. The 2nd, 7th and 13th arrondissements do not have waste collection points. Also, of the 15 regrouping points available to the city, 5 are not functional. The districts that produce more waste in Cotonou are the twelfth which ranks first with 58,408.23 kg followed by the sixth with 44,937.02 kg. The third and thirteenth occupy the third and fourth place with respectively 41,748.73 kg and 40,851.46 kg.