As an example of the involvement of local authorities in the implementation of deposit schemes, the city of Cadaqués, Catalonia, implemented a pilot test to evaluate its effect on the municipal waste management system, from the environmental and economic point of view. The experiment was promoted by Retorna through the support of a number of agencies and waste managers in the region (Recuperadors de Catalunya, Internaco SA, Rhenus Logistics and Tomra SA). The exercise was supervised by the Catalonia waste agency. The effect on municipal waste management economics was relevant, reducing collection costs from 9.5 % to 6.5 %. However, a reduction in the income from recycling was detected, as well as a reduction in collection costs. Collected packagings were sold at prices 20 % to 40 % higher than usual due to the good quality of the waste streams. In addition, the cleanliness of public spaces in the city was evident (Retorna, 2013).