The State agency shall: Maintain the WIC-authorized foods list; Make the list available to all participants and authorized WIC vendors; and Maintain the APL. A vendor shall keep a copy of the Program’s current WIC-authorized foods list: At each cash register where WIC transactions are handled; and On-site at the authorized vendor location along with the vendor manual. The WIC-authorized foods list shall be used in conjunction with the APL to identify foods items that are eligible for purchase using WIC food instruments. Food instruments may require that program participants purchase specific manufacturers or brands that are not included in the WIC-authorized foods list. Authorized vendors shall sell WIC-approved brands for food categories identified in the WIC-authorized foods list and the APL.