DMM Advisory
Pricing and Classification — keeping you informed about the prices and mailing standards of the United States Postal Service
New Address Standards for Presorted, Carrier Route, and Automation Flats
An advance copy of the Federal Register notice changing the address standards for flat-size mail is now available on Postal Explorer. The new standards are effective on March 29, 2009, and require mailers to place the delivery address in the top half of all Periodicals, Standard Mail, Bound Printed Matter, Media Mail, and Library Mail flat-size pieces mailed at automation, presorted, or carrier route prices. Additional formatting standards apply to all commercial flats.
We will use the DMM Advisory to notify you when the notice appears in the Federal Register.
The Domestic Mail Manual (DMM) is available on Postal Explorer (pe.usps.com). To subscribe to the DMM Advisory, send an e-mail to