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International Mail Manual; Incorporation by Reference

The Postal Service announces the issuance of the Mailing Standards of the United States Postal Service, International Mail Manual (IMM[supreg]), issued November 2, 2026, and its...

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Postal Service
  1. 39 CFR Part 20

AGENCY:

Postal Service.

ACTION:

Final rule.

SUMMARY:

The Postal Service announces the issuance of the Mailing Standards of the United States Postal Service, International Mail Manual (IMM®), issued November 2, 2026, and its incorporation by reference in the Code of Federal Regulations.

DATES:

This rule is effective November 4, 2026. The incorporation by reference of certain material listed in this rule is approved by the Director of the Federal Register as of November 4, 2026.

FOR FURTHER INFORMATION CONTACT:

Alison Fassett at (202) 268-8045.

SUPPLEMENTARY INFORMATION:

The IMM provides our standards for all international mailing services and references for the applicable prices. It was issued on November 2, 2026, and was updated with Postal Bulletin revisions through October 1, 2026. It replaces all previous editions.

The IMM continues to enable the Postal Service to fulfill its long-standing mission of providing affordable, universal mail service. It continues to: (1) increase the user's ability to find information; (2) increase the user's confidence that he or she has found the information they need; and (3) reduce the need to consult multiple sources to locate necessary information. The provisions throughout this issue support the standards and mail preparation changes implemented since the version issued on April 7, 2025.

The IMM is available via the Postal Explorer® website at pe.usps.com. Changes to mailing standards will continue to be published ( printed page 69505) through Federal Register documents and the Postal Bulletin and will appear in the next online version of the IMM.

List of Subjects in 39 CFR Part 20

  • Administrative practice and procedure
  • Foreign relations
  • Incorporation by reference

In view of the considerations discussed above, the Postal Service hereby amends 39 CFR part 20 as follows:

PART 20—INTERNATIONAL POSTAL SERVICE

1. The authority citation for part 20 continues to read as follows:

Authority: 5 U.S.C. 552(a); 13 U.S.C. 301-307; 18 U.S.C. 1692-1737; 39 U.S.C. 101, 401, 403, 404, 407, 414, 416, 3001-3011, 3201-3219, 3403-3406, 3621, 3622, 3626, 3632, 3633, and 5001.

2. Amend § 20.1 by revising paragraph (b) to read as follows:

Incorporation by reference; Mailing Standards of the United States Postal Service, International Mail Manual.
* * * * *

(b) The Director of the Federal Register approved the IMM, issued November 2, 2026 for incorporation by reference as of November 4, 2026.

3. Revise § 20.2 to read as follows:

Effective date of the International Mail Manual.

The provisions of the International Mail Manual, issued November 2, 2026, (incorporated by reference, see § 20.1) are applicable with respect to the international mail services of the Postal Service.

4. Amend § 20.4 by adding a new entry at the end of table 1 to § 20.4 to read as follows:

Amendments to the International Mail Manual.
* * * * *

Table 1 to § 20.4—International Mail Manual
International mail manual Date of issuance
 
*    *    *    *    *
IMM November 2, 2026.

Jeffrey Boblick,

Attorney, Ethics and Legal Compliance.

[FR Doc. 2026-22505 Filed 11-3-26; 8:45 am]

BILLING CODE 7710-12-P

Legal Citation

Federal Register Citation

Use this for formal legal and research references to the published document.

91 FR 69504

Web Citation

Suggested Web Citation

Use this when citing the archival web version of the document.

“International Mail Manual; Incorporation by Reference,” thefederalregister.org (November 4, 2026), https://thefederalregister.org/documents/2026-22505/international-mail-manual-incorporation-by-reference.