Seigarbost has installed its Duelock model locks in the containers, and pneumatic suction mailboxes, of organic matter in the city of Vitoria-Gasteiz. For this, it has developed a new version of Duelock with double closure, one on the upper lid of the container and the other on the front lid of the same. This project had the added difficulty that the locks had to be programmed so that they could be opened with the citizen cards already distributed by the town hall, being a necessary condition that those cards did not have to be reprogrammed again. It has also been necessary to devise and develop a system that has enabled users’ mobile phones to be enabled so that they can open the locks with them. Seigarbsot has undertaken the preventive and corrective maintenance of this park of locks with its own equipment. The implementation has been successful.