4 Effects of USPS' Proposed Rules for Self-Mailers
4. A Change in Format Definition
Under the new rule, a folded self-mailer will be defined only as a continuous sheet of paper. That means marketers cannot use creative formats like pull tabs, extra panels, pockets, sticky notes or stickers if they are to achieve machinable rates. Booklets have more inclusive parameters—defined as multiple sheets folded together and bound or permanently fastened. Additionally, booklets may be folded for mailing as long as they maintain a uniform thickness.
Go to http://pe.usps.com/Booklets_and_Folded_SelfMailers.pdf to download the full proposal.