The "Facing slip" for EDDM is a sheet of paper attached to the mail tray.  The slip gives the details of the contents of the tray. The information includes: Route #  i.e. "C8" Quantity: i.e. "507" Date: i.e: "08/08" Short Description: i.e. "Postcards" Address exclusion: i.e. "123 Main Street"