Mailing Standards of the United States Postal Service,
International Mail Manual
January 17, 2016
Mailing Standards of the United States Postal Service, International Mail Manual (IMM) provides our official prices and standards for all international mailing services. Many mailers find it helpful to reference these standards as they prepare and deposit their mail.
Mailers looking for an overview of prices and international extra services can use Notice 123, Price List. It provides the most commonly sought international mailing information in an easy-to-read and easy-to-find format. Notice 123 is available on our Postal Explorer Web site at pe.usps.com. Postal Explorer also provides helpful search features, mailing tools, and price calculators to make mailing easy.
Summary of Changes
The IMM is updated frequently on Postal Explorer at pe.usps.com. Revisions are published in the Summary of Changes by IMM module. Mailing standards in the IMM are revised by notices published in the Postal Bulletin or the Federal Register.
Public: The public can access the updated IMM in PDF and HTML formats on Postal Explorer at pe.usps.com, or by ordering the Postal Explorer CD-ROM. Archived copies may be available through the U.S. Government Printing Office, 202-512-1800.
USPS: Postal Service employees can access the updated IMM in PDF or HTML formats on Postal Explorer at pe.usps.com or on the Postal Explorer CD-ROM.
How to Use This Book
The IMM is organized into nine chapters that describe mailing methods based on shape of mail, category of mail service, and topic. The chapters are followed by Individual Country Listings that contain specific mailing standards for each country.
Contact your local Post Office, business mail entry office, or the Pricing and Classification Service Center (PCSC) with comments or questions about our mailing standards. Mailing Standards of the United States Postal Service, Domestic Mail Manual (DMM) section 608.8.4 provides addresses and telephone numbers of business mail entry offices and the PCSC.