USPS Homepage Skip Navigation USPS Home | Postal Explorer Home
  Go to HTML Version >
  Postage Prices:
  Conversion Calculator
  Country Max Limits and
  Price Groups
  Customs Forms Indicator
  Service Standards
  Zone Charts
  DMM Streamline
  DMM Cross Reference
  Address Quality
  Business Customer
  Business Mail 101
  Federal Register Notices
  Locate a Post Office
  Mailpiece Design
  Postage Statements
  Postal Bulletins
  Postal Links
  Standard Mail Eligibility
  Decision Tree & CSRs
  ZIP Code Lookup
  About Postal Explorer
  Contact Us
  Download Acrobat Reader



April 30
April 30, 2009


May 11 Pricing Change – First-Class Mail and Standard Mail Machinable Letters


We are changing the mail preparation standards for First-Class Mail and Standard Mail machinable letters as published in the January 29 Federal Register. Beginning May 11, machinable letters must meet all of the standards for automation letters, except for the barcode requirement. This change will enable us to process more machinable mail on automated letter sorting machines, especially unenveloped pieces like booklets and folded self-mailers. When these pieces lack adequate tabs or seals they frequently become damaged or jam the letter-sorting equipment. 


Our changes include the following:

  • All folded self-mailers and booklets mailed at the machinable prices must be sealed with tabs, tape, glue spots, or glue lines.  Follow the tabbing instructions in Quick Service Guide 201b, Using Tabs, Wafer Seals, and Glue Spots. 
  • The maximum weight for machinable and automation letter-size booklets and folded self-mailers is 3 ounces.
  • Letters closed with staples and letters without closures are nonmachinable and eligible only for the nonmachinable prices. 


On September 8, 2009, new tabbing and construction standards for machinable and automation letter-size booklets become effective.  To learn more about the new standards, visit Postal Explorer and click on “Federal Register Notices.”  Scroll down to the notice titled, “New Standards for Letter-Sized Booklets.”