Abstract: A C-fold type business form having three panels formed from a single sheet of paper that is C-folded about fold lines is specifically adapted to be used for certified or registered mail. Certified or registered mail return receipt indicia is imaged on the third panel first and second faces, including a signature line imaged on the third panel first face, and a plurality of lines of weakness are formed in the third panel to define a return receipt card with the return receipt indicia on it. Certified or registered mail notification indicia is imaged on the second panel first face, as well as variable outgoing address indicia. Green printing is provided on the third panel in at least the area of the return receipt card. The return receipt card is readily removable from the rest of the mailer with a minimum of perf lines provided, but optionally with tacking adhesive adjacent the return receipt card holding the third and first panels together.