Retailers in Germany are obliged to take back the deposit for the type of bottles that the specific retailer distributes himself. For example, if the retailer sells PET bottles, the retailer must take back all types of PET bottles, regardless of their contents. The regulation is more difficult for returnable bottles because of the different bottle shapes of the respective suppliers. This means that the retailer is only obliged to take back the reusable bottles whose brand is offered. The regulations for this are contained in the Deposit Ordinance.