# [Amended]
**AGENCY:**
Postal Service <sub>TM</sub> .
**ACTION:**
Final rule.
**SUMMARY:**
The Postal Service announces the issuance of the *Mailing Standards of the United States Postal Service, Domestic Mail Manual* (DMM®) dated March 5, 2018, and its incorporation by reference in the *Code of Federal Regulations.*
**DATES:**
This final rule is effective on April 25, 2018.
The incorporation by reference of the DMM dated March 5, 2018, is approved by the Director of the Federal Register as of April 25, 2018.
**FOR FURTHER INFORMATION CONTACT:**
Lizbeth Dobbins (202) 268-3789.
**SUPPLEMENTARY INFORMATION:**
The most recent issue of the *Domestic Mail Manual* (DMM) is dated March 5, 2018. This issue of the DMM contains all Postal Service domestic mailing standards, and continues to: (1) Increase the user's ability to find information; (2) increase confidence that users have found all the information they need; and (3) reduce the need to consult multiple chapters of the Manual to locate necessary information. The issue dated March 5, 2018, sets forth specific changes, including new standards throughout the DMM to support the standards and mail preparation changes implemented since the version issued on January 22, 2017.
Changes to mailing standards will continue to be published through *Federal Register* notices and the *Postal Bulletin,* and will appear in the next online version available via the Postal Explorer® website at: *http://pe.usps.com.*
**List of Subjects in 39 CFR Part 111**
Administrative practice and procedure, Incorporation by reference.
In view of the considerations discussed above, the Postal Service hereby amends 39 CFR part 111 as follows:
**PART 111—GENERAL INFORMATION ON POSTAL SERVICE**
**39 CFR Part 111**
1. The authority citation for 39 CFR part 111 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, 414, 416, 3001-3011, 3201-3219, 3403-3406, 3621, 3622, 3626, 3632, 3633, and 5001.
**39 CFR Part 111**
2. In § 111.3 amend paragraph (f) by adding a new entry at the end of the table to read as follows:
§ 111.3
(f) * * *
| Transmittal letter for issue | Dated | publication |
| --- | --- | --- |
| | | |
| * * * * * * * | | |
| DMM | March 5, 2018 | [Insert
Citation for this Rule]. |
§ 111.4
**39 CFR Part 111**
3. Amend § 111.4 by removing “June 23, 2017” and adding “April 25, 2018” in its place.
Ruth Stevenson,
Attorney, Federal Compliance.