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Quick Service Guide 301Discount FlatsPhysical Standards for Discount FlatsMay 2007 Overview
For physical standards of automation flats, see Quick Service Guide 301a. In addition to shape, the Postal Service classifies mailpieces by the way they are prepared. These classifications are based on how efficiently your mailpieces can be processed on Postal Service equipment. The Postal Service classifies discount flats as either nonautomation or automation flats. A flat meets automation standards and qualifies for automation rates if it meets the specific addressing, barcoding, and design standards. Automation rate flats must have a delivery point barcode, ZIP+4 barcode, or an Intelligent Mail barcode. Dimensions, Shape, Flexibility, and Uniform Thickness (301.1.0)Dimensions: The length of a flat-size mailpiece is the longest dimension. The height is the dimension perpendicular to the length. Shape: rectangular. Flexibility: flat-size piece must meet flexibility criteria in 301.1.4. Uniform thickness: the contents must be uniformly thick so that any bumps, protrusions, or irregularities do not cause more than 1/4 inch variance in thickness (301.1.5). Mailpieces that do not meet the standards for shape in 301.1.3, or for flexibility in 301.1.4, or for uniform thickness in 301.1.5, must pay applicable rates as follows: Presorted Nonautomation Flats (301.2.0)Maximum weight: Automation Flats (301.3.0)Flats may qualify for the automation discount based on the physical standards in 301.3.0. Periodicals automation flats may also qualify under alternative criteria in 707.25.3. See Quick Service Guide 301a, Designing Flats for Automated Processing, for an overview. Standard Mail Not Flat-Machinable Pieces (401.2.2)For Standard Mail Not Flat-Machinable pieces, see Quick Service Guide 401. For the specific DMM standards applicable to this category of mail, consult the DMM sections referenced above and the general sections within each DMM module. Quick Service GuidesFirst-Class Mail See Quick Service Guides: Standard Mail See Quick Service Guides: 340c Enhanced Carrier Route Flats Bound Printed Matter See Quick Service Guide: Media Mail See Quick Service Guide: Library Mail See Quick Service Guide: Periodicals See Quick Service Guides:
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