Municipalities, public establishments for inter-municipal cooperation and mixed syndicates responsible for the collection and treatment of household waste within the meaning of Article L. 2224-13 or collecting the tax or fee for the removal of household waste may carry out, within the limit of 1% of the resources that are allocated to the budgets of these services and within the framework of article L. 1115-1, cooperation, development aid or humanitarian actions in the areas of household waste collection and treatment.