Effective February 19, 2026, the Postal Service™ is revising the Individual Country Listing for Argentina in Mailing Standards of the United States Postal Service, International Mail Manual (IMM®) to reflect that the addressee’s phone number and email address should be included on the customs declaration form when mailing items containing goods and for all Priority Mail Express International® items sent to Argentina.
This revision is based on a formal request that Correo Oficial de la Republica Argentina S.A. (the designated postal operator of Argentina) made through the Universal Postal Union via International Bureau Circular 2, dated January 19, 2026.
Mailing Standards of the United States Postal Service, International Mail Manual (IMM)
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Individual Country Listings
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Argentina
Country Conditions for Mailing
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Observations
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[Add new item 5. to read as follows:]
5. Items containing goods and all Priority Mail Express International mailpieces should include the addressee’s email address and telephone number on the customs declaration form, where available. Generic and third-party email addresses will not be accepted. The telephone number should include the area code plus local number, excluding special characters and extra spaces (e.g.,1234567890). Where more than 10 digits are provided, only the last 10 digits will be retained.
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Although effective February 19, 2026, the Postal Service will incorporate this revision into the next edition of the online IMM, which is available via Postal Explorer® at pe.usps.com.
— Product Classification,
Product Solutions, 2-19-26
