Effective October 19, 2023, the Postal Service™ is revising Mailing Standards of the United States Postal Service, International Mail Manual (IMM®), section 121.1, to align with Mailing Standards of the United States Postal Service, Domestic Mail Manual (DMM®), section 601.6.1, to reflect that USPS-produced packaging is not eligible for shipping mailable dangerous goods or live animals.
Mailing Standards of the United States Postal Service, International Mail Manual (IMM)
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1 International Mail Services
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120 Preparation for Mailing
121 General Information for Mail Preparation
121.1 Packaging — Sender’s Responsibility
[Add a new third sentence to read as follows:]
***USPS-produced packaging is not eligible for shipping mailable dangerous goods or live animals.***
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Although effective October 19, 2023, the Postal Service will incorporate this revision into a later edition of the online IMM (after the one scheduled for November 6, 2023). The IMM is available via Postal Explorer® at pe.usps.com.
— Product Classification,
Product Solutions, 10-19-23