At performance of the contract it is inadmissible to change the name of the producer, leaving characteristics of goods former. A conclusion of the Ministry of Economic Development is proved by the fact that the Law N 44-FL allows to replace goods if his quality, technical and functional characteristics (consumer properties) have improved in comparison with the quality and the corresponding technical and functional characteristics specified in the contract. In this case corresponding changes have to be entered by the customer in the register of the contracts concluded by the customer.