Publishers may not mail at Periodicals prices before the Postal Service approves an application for Periodicals mailing privileges. While the application is pending, postage must be paid at USPS Marketing Mail®, Bound Printed Matter®, and Parcel Select® prices or at single-piece Priority Mail®, First-Class Mail®, and USPS Ground Advantage® — Retail prices under the exception in DMM 207.5.3.6.
