Figure 20 Use of Previously Identified AsFigure 20 displays the footer area of a publication in English and Spanish where the product ID has been changed by adding the language code. The footer has the official identification in English and the publication number includes the dual (en-sp) language code. The identification lines are “Publication 4857 (en-sp) (Rev. 12-2020) Catalog Number 55009Z.” The second line is “Department of the Treasury Internal Revenue Service” Below this is “Previously Identified As Publication 4857.”