New Address Standards for Presorted, Carrier Route, and Automation Flats  

Today the Federal Register published our final rule [PDF] | [HTML] changing the address standards for commercial flat-size mail, which we posted previously on Postal Explorer. The new standards are effective March 29, 2009, and require mailers to place delivery addresses in the top half of all Periodicals, Standard Mail, and Package Services flats mailed at automation, presorted, or carrier route prices. Additional standards relate to address characteristics and apply to all commercial flat-size pieces. 

We encourage mailers to review the new standards as you prepare for the change. We will publish additional materials shortly, including a new Quick Service Guide. We will use the Advisory to keep you informed.