GENERAL INFORMATION ON POSTAL SERVICE

§ 111.1Incorporation by reference; Mailing Standards of the United States Postal Service, Domestic Mail Manual.

(a) Mailing Standards of the United States Postal Service, Domestic Mail Manual (DMM) is incorporated by reference into this part with the approval of the Director of the Federal Register under 5 U.S.C. 552(a) and 1 CFR part 51.
(1) Subscriptions. Subscriptions to the Mailing Standards of the United States Postal Service, Domestic Mail Manual can be purchased by the public from the Superintendent of Documents, Washington, DC 20402-9375.
(2) Inspection—USPS. (i) Copies of the DMM, both current and previous issues, are available during regular business hours for reference and public inspection at the U.S. Postal Service Library, National Headquarters in Washington, DC. For access contact 202-268-2906.
(ii) Copies of only the current issue are available during regular business hours for public inspection at area and district offices of the Postal Service and at all post offices, classified stations, and classified branches. The DMM is available for examination on the internet at https://pe.usps.gov.
(3) Inspection—NARA. You may view this material at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations or email [email protected].
(b) The Director of the Federal Register approved the DMM, dated April 7, 2025, for incorporation by reference as of May 23, 2025.

§ 111.3Amendments to the Mailing Standards of the United States Postal Service, Domestic Mail Manual.

(a) A complete issue of the DMM is incorporated by reference annually ( see § 111.1). Except for interim or final regulations published as provided in paragraph (b) of this section, only notifications rather than complete text of changes made to the DMM are published in the Federal Register. These documents are published in the form of one summary transmittal letter for each issue of the DMM. A complete issue of the DMM incorporated by reference, which includes the text of all changes published to date, is filed with the Director, Office of the Federal Register. Subscribers to the DMM receive the latest issue of the DMM from the Government Publishing Office (see § 111.1 for subscription information).
(b) When the Postal Service invites comments from the public on a proposed change to the Mailing Standards of the United States Postal Service, Domestic Mail Manual, the proposed change and, if adopted, the full text of the interim or the final regulation is published in the Federal Register.
(c) The Postal Bulletin contains the full text of all interim and final regulations published as provided in paragraph (b) of this section, and the full text of all other changes to the Mailing Standards of the United States Postal Service, Domestic Mail Manual that are summarized in the notices published under paragraph (a) of this section, except for nonsubstantive changes and corrections of typographical errors. The Postal Bulletin is a biweekly document issued by the Postal Service to amend and revise policies and procedures. A 1-year subscription to the Postal Bulletin and certain back copies can be purchased by the public from the Superintendent of Documents, Washington, DC 20402-9371.
(d) Interim regulations published in full text or referenced as provided in paragraphs (b) and (c) of this section, are published, as appropriate, in the Mailing Standards of the United States Postal Service, Domestic Mail Manual in full text or referenced at the place where they would appear if they become final regulations.
(e) Announcements of changes to the Mailing Standards of the United States Postal Service, Domestic Mail Manual not published in the Federal Register as provided in paragraphs (a) and (b) of this section and not published in the Postal Bulletin as provided in paragraph (c) are not deemed final under the provisions of this part 111.
(f) For references to amendments to the Mailing Standards of the United States Postal Service, Domestic Mail Manual adopted under paragraph (b) of this section after issuance of the most recent transmittal letter (termed Summary of Changes in the Mailing Standards of the United States Postal Service, Domestic Mail Manual) listed below, see § 111.3 in the List of CFR Sections affected at the end of this volume.
Table 1 to § 111.3—Domestic Mail Manual
Transmittal letter for issue
Dated
Federal Register publication
1
July 30, 1979
44 FR 39742.
2
May 15, 1980
45 FR 42616.
3
July 30, 1980
45 FR 73925.
4
Oct. 1, 1980
46 FR 10154.
5
Mar. 1, 1981
46 FR 25446.
6
July 7, 1981
46 FR 58079.
7
Nov. 1, 1981
47 FR 8179.
8
Jan. 21, 1982
47 FR 8358.
9
May 1, 1982
47 FR 27266.
10
Aug. 1, 1982
47 FR 43952.
11
Jan. 20, 1983
48 FR 10649.
13
Dec. 29, 1983
49 FR 18304.
14
Apr. 12, 1984
49 FR 26228.
15
July 12, 1984
49 FR 33248.
16
Sept. 27, 1984
49 FR 47232.
17
Dec. 20, 1984
50 FR 5580.
18
Feb. 21, 1985
50 FR 12019.
19
June 7, 1985
50 FR 30834.
20
Nov. 14, 1985
51 FR 8495.
21
Sept. 4, 1986
51 FR 43910.
22
Jan.22, 1987
52 FR 10750.
23
May 1, 1987
52 FR 23981.
24
Sept. 20, 1987
52 FR 34778.
25
Dec. 20, 1987
52 FR 48437.
26
April 3, 1988
53 FR 18557.
27
June 19, 1988
53 FR 21821.
28
Sept. 18, 1988
53 FR 35315.
29
Dec.18, 1988
53 FR 49658.
30
Mar. 19, 1989
54 FR 9212.
31
June 18, 1989
54 FR 27880.
32
Sept. 17, 1989
54 FR 37795.
33
Dec. 17, 1989
54 FR 50619.
34
Mar. 18, 1990
55 FR 10061.
35
June 17, 1990
55 FR 24561.
36
Sept. 16, 1990
55 FR 40658.
37
Dec. 16, 1990
56 FR 1112.
38
Feb. 24, 1991
56 FR 11513.
39
June 16, 1991
56 FR 56015.
40
September 15, 1991
56 FR 56013.
41
December 15, 1991
57 FR 21611.
42
March 15, 1992
57 FR 21613.
43
June 21, 1992
57 FR 37884.
44
September 20, 1992
61 FR 67218.
45
December 20, 1992
61 FR 67218.
46
July 1, 1993
61 FR 67218.
47
April 10, 1994
61 FR 67218.
48
January 1, 1995
61 FR 67218.
49
September 1, 1995
61 FR 67218.
50
July 1, 1996
61 FR 60190.
51
January 1, 1997
61 FR 64618.
52
July 1, 1997
62 FR 30457.
53
January 1, 1998
62 FR 63851.
54
January 10, 1999
64 FR 39.
55
January 10, 2000
65 FR 1321.
56
January 7, 2001
66 FR 8370.
57
June 30, 2002
67 FR 46875.
58
August 10, 2003
68 FR 66018.
Premier Edition
January 6, 2005
70 FR 14535.
Issue 300
January 8, 2006
73 FR 25509.
Issue 300
July 15, 2007
73 FR 25509.
Issue 300
May 12, 2008
75 FR 31702.
Issue 300
May 11, 2009
75 FR 31702.
Issue 300
May 7, 2008
73 FR 25508.
Issue 300
May 11, 2009
75 FR 31702.
DMM 300
July 5, 2011
76 FR 48722.
DMM 300
June 24, 2012
77 FR 45246.
DMM 300
January 25, 2015
80 FR 13492.
DMM 300
July 11, 2016
81 FR 66822.
DMM
January 22, 2017
82 FR 28559.
DMM
March 5, 2018
83 FR 17922.
DMM
March 4, 2019
84 FR 24392.
DMM
July 1, 2020
85 FR 61609.
DMM
July 10, 2022
87 FR 63425.
DMM
January 21, 2024
89 FR 15474.
DMM
April 7, 2025
90 FR 22013.

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