Effective February 25, 2021, the Postal Service™ is revising Mailing Standards of the United States Postal Service, International Mail Manual (IMM®), parts 134 and 271, to align the text with the standards established by the Universal Postal Convention.
This article includes necessary revisions that were inadvertently not included in the following two Postal Bulletin articles:
n “IMM Revision: Changes to Pricing and Products for International Mailing Services” in Postal Bulletin 22482 (12-7-17, pages 16–20 and 41–44), which noted that merchandise was no longer permitted in First-Class Mail International® service but had to be sent by First-Class Package International Service® or another acceptable service.
n “IMM Revision: First-Class Mail International Flats Weight Limit” in Postal Bulletin 22520 (5-23-19, pages 7–9), which noted a lower maximum weight limit on First-Class Mail International large envelopes (flats).
Consequently, effective February 25, 2021, the Postal Service™ is revising IMM parts 134 and 271 to reflect the actual standards.
Mailing Standards of the United States Postal Service, International Mail Manual (IMM)
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1 International Mail Services
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130 Mailability
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134 Valuable Articles
134.1 Service Options
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[Revise item a. to read as follows (removing the reference to First-Class Mail International service):]
a. First-Class Package International Service with Registered Mail service.
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2 Conditions for Mailing
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270 Free Matter for the Blind
271 Description and Physical Characteristics
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271.2 Weight Limits
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[Revise the chart to read as follows:]
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Although effective February 25, 2021, the Postal Service will incorporate these revisions into the next edition of the online IMM, which is available via Postal Explorer® at pe.usps.com.
— Product Classification,
Product Solutions, 2-25-21
