Addressing Requirements

Effective March 29, 2009, new address placement and formatting requirements adopted by the Postal Service^® for Periodicals, Standard Mail^®, Bound Printed Matter, Media Mail^®, and Library Mail flat-size pieces sent at automation, presorted, or carrier route prices were implemented. USPS^® also adopts related revisions for automation and presorted First-Class Mail^® flats. New requirements were published in the Federal Register May 7, 2008.

The following collection of resources provides details necessary to stay compliant with addressing requirements.

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