Within the scope of the Deposit Information Management System (DBYS), a "Multiple User Commitment Letter" has been prepared and put into operation for the multiple user registration procedures regarding the assignment of more than one user and determination and change of user authorizations to be carried out within the scope of the Mandatory Deposit Management System by the DYS transaction authorities of Marketers and Label Packaging Manufacturers. Deposit Information Management System applications are carried out through the dbys.gov.tr address and the "Multiple User Commitment Letter" can be accessed from the system users menu.