Plaine Commune is implementing five experiments to sort biowaste at source for households and deploy the collection of AD in all schools in its territory in an approach that respects the criteria of eco-conditionality and the principle of DNSH. These experiments aim to make it possible to decide on the most appropriate deployment of the sorting of biowaste at source for households in Plaine Commune as well as to project on this resource in the short and medium term, in particular, in a regulatory context that requires communities in charge of waste to propose a solution for sorting biowaste at source by 31 December 2023 for all households and producers of similar waste. The following experiments are the subject of this operation: - Experimentation 1 - Epinay-sur-Seine: Individual compositing - Experimentation 2 - Aubervilliers: Shared Composting - Experiments 3 and 4 - Île-Saint-Denis / Saint-Ouen-sur-Seine: Collection of DAs as a voluntary contribution (via shelter-bac) - Experimentation 5 - Saint-Denis: DA collection on the fairground market as a voluntary contribution - Deployment of DA collection on all schools in the territory - Aubervilliers / La Courneuve / Pierrefitte-sur-Seine / Villetaneuse / Stains