Effective November 2, 2026, the Postal Service™ will revise Mailing Standards of the United States Postal Service, Domestic Mail Manual (DMM®), in various sections, to clarify standards related to price-change initiatives that took effect July 12, 2026.
Although these revisions will not be published in the DMM until November 2, 2026, these standards are effective immediately.
Mailing Standards of the United States Postal Service, Domestic Mail Manual (DMM)
200 Commercial Mail Letters, Cards, and Parcels
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203 Basic Postage Statement, Documentation, and Preparation Standards
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7.0 Optional Endorsement Lines (OELs)
7.1 OEL Use
7.1.1 Basic Standards
[Revise the third sentence of 7.1.1 to read as follows:]
Note: ***Use of OELs on bundles is subject to the standards for the sortation level claimed.***
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207 Periodicals
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2.0 Price Application and Computation
2.1 Price Application
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2.1.9 Delivery Sort Container Discount Eligibility
[Revise the text of item b. to read as follows:]
b. High Density;
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230 Commercial Mail First-Class Mail
233 Prices and Eligibility
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4.0 Additional Eligibility Standards for Nonautomation First-Class Mail
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[Revise the title of 4.3 to read as follows:]
4.3 Price Application for Nonautomation Machinable Letters
[Add between the title of 4.3 and the introductory text of 4.3 a new section number and title to read as follows and renumber current 4.3.1 through 4.3.3 as new 4.3.2 through 4.3.4, respectively:]
4.3.1 General
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4.3.2 3-Digit Price
[Revise the text of renumbered 4.3.2 to read as follows:]
The 3-digit price applies to qualifying letter-size machinable pieces (see 201.1.0) placed in origin/entry SCF trays (regardless of quantity), to quantities of 150 or more pieces prepared in SCF trays for a single SCF, and to pieces placed in mixed trays in lieu of overflow SCF trays.
[Revise the title and text of renumbered 4.3.3 to read as follows:]
4.3.3 3-Digit First-Class Mail Letter-Shaped Pieces SCF-Pallet Discount Eligibility
The SCF-pallet discount applies to 3-digit/SCF-eligible First-Class Mail letter-shaped pieces that are palletized under 705.8.10.1b.
Note: The SCF-pallet discount also applies to pieces that are palletized according to a Customer/Supplier Agreement (CSA) with the following processing codes: Local, Surface, or Air. Containers with processing codes for Mixed Air, Mixed Surface, Working, and Single-Piece do not qualify for the SCF-pallet discount.
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[Revise the title of 4.5 to read as follows:]
4.5 Price Application for Nonautomation Nonmachinable Letters
[Add between the title of 4.5 and the introductory text of 4.5 a new section number and title to read as follows and renumber current 4.5.1 through 4.5.5 as new 4.5.2 through 4.5.6, respectively:]
4.5.1 General
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[Revise the title and text of renumbered 4.5.3 to read as follows:]
4.5.3 5-Digit First-Class Mail Letter-Shaped Pieces SCF-Pallet Discount Eligibility
The SCF-pallet discount applies to 5-digit-eligible First-Class Mail letter-shaped pieces that are palletized under 705.8.10.1a to 705.8.10.1c and 705.8.10.1e.
Note: The SCF-pallet discount also applies to pieces that are palletized according to a Customer/Supplier Agreement (CSA) with the following processing codes: Local, Surface, or Air. Containers with processing codes for Mixed Air, Mixed Surface, Working, and Single-Piece do not qualify for the SCF-pallet discount.
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[Revise the title and text of renumbered 4.5.5 to read as follows:]
4.5.5 3-Digit First-Class Mail Letter-Shaped Pieces SCF-Pallet Discount Eligibility
The SCF-pallet discount applies to 3-digit-eligible First-Class Mail letter-shaped pieces that are palletized under 705.8.10.1b, 705.8.10.1c or 705.8.10.1e.
Note: The SCF-pallet discount also applies to pieces that are palletized according to a Customer/Supplier Agreement (CSA) with the following processing codes: Local, Surface, or Air. Containers with processing codes for Mixed Air, Mixed Surface, Working, and Single-Piece do not qualify for the SCF-pallet discount.
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[Revise the title of 4.6 to read as follows:]
4.6 Price Application for Presorted Nonautomation Cards and Flats
[Add between the title of 4.6 and the introductory text of 4.6 a new section number and title to read as follows and renumber current 4.6.1 as new 4.6.2:]
4.6.1 General
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[Revise the title and text of renumbered 4.6.2 to read as follows:]
4.6.2 Presorted First-Class Mail Cards and Flat-Shaped Pieces SCF-Pallet Discount Eligibility
The SCF-pallet discount applies to presorted-eligible First-Class Mail cards and flat-shaped pieces that are palletized under 705.8.10.1a to 705.8.10.1c and 705.8.10.1e (for flats) and 705.8.10.1d (for cards).
Note: The SCF-pallet discount also applies to pieces that are palletized according to a Customer/Supplier Agreement (CSA) with the following processing codes: Local, Surface, or Air. Containers with processing codes for Mixed Air, Mixed Surface, Working, and Single-Piece do not qualify for the SCF-pallet discount.
5.0 Additional Eligibility Standards for Automation First-Class Mail
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[Revise the title of 5.4 to read as follows:]
5.4 Price Application for Automation Cards and Letters
[Add between the title of 5.4 and the introductory text of 5.4 a new section number and title to read as follows and renumber current 5.4.1 and 5.4.2 as new 5.4.2 and 5.4.3, respectively:]
5.4.1 General
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[Revise the text of item b. of new 5.4.1 to read as follows:]
b. Groups of 150 or more pieces in SCF trays and al pieces in origin/entry SCF trays (regardless of quantity) qualify for the 3-digit price.
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[Revise the title and text of renumbered 5.4.2 to read as follows:]
5.4.2 5-Digit First-Class Mail Cards and Letter-Shaped Pieces SCF-Pallet Discount Eligibility
The SCF-pallet discount applies to 5-digit-eligible First-Class Mail cards and letter-shaped pieces that are palletized under 705.8.10.1a to 705.8.10.1d.
Note: The SCF-pallet discount also applies to pieces that are palletized according to a Customer/Supplier Agreement (CSA) with the following processing codes: Local, Surface, or Air. Containers with processing codes for Mixed Air, Mixed Surface, Working, and Single-Piece do not qualify for the SCF-pallet discount.
[Revise the title and text of renumbered 5.4.3 to read as follows:]
5.4.3 3-Digit First-Class Mail Cards and Letter-Shaped Pieces SCF-Pallet Discount Eligibility
The SCF-pallet discount applies to 3-digit/SCF-eligible First-Class Mail cards and letter-shaped pieces that are palletized under 705.8.10.1b.
Note: The SCF-pallet discount also applies to pieces that are palletized according to a Customer/Supplier Agreement (CSA) with the following processing codes: Local, Surface, or Air. Containers with processing codes for Mixed Air, Mixed Surface, Working, and Single-Piece do not qualify for the SCF-pallet discount.
[Revise the title of 5.5 to read as follows:]
5.5 Price Application for Flats
[Add between the title of 5.5 and the introductory text of 5.5 a new section number and title to read as follows and renumber current 5.5.1 and 5.5.2 as new 5.5.2 and 5.5.3, respectively:]
5.5.1 General
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[Revise the title and text of renumbered 5.5.2 to read as follows:]
5.5.2 5-Digit First-Class Mail Flat-Shaped Pieces SCF-Pallet Discount Eligibility
The SCF-pallet discount applies to 5-digit-eligible First-Class Mail flat-shaped pieces that are palletized under 705.8.10.1a to 705.8.10.1c and 705.8.10.1e.
Note: The SCF-pallet discount also applies to pieces that are palletized according to a Customer/Supplier Agreement (CSA) with the following processing codes: Local, Surface, or Air. Containers with processing codes for Mixed Air, Mixed Surface, Working, and Single-Piece do not qualify for the SCF-pallet discount.
5.5.3 3-Digit First-Class Mail Flat-Shaped Pieces SCF-Pallet Discount Eligibility
[Revise the text of renumbered 5.5.3 to read as follows:]
The SCF-pallet discount applies to 3-digit/SCF-eligible First-Class Mail flat-shaped pieces that are palletized under 705.8.10.1b.
Note: The SCF-pallet discount also applies to pieces that are palletized according to a Customer/Supplier Agreement (CSA) with the following processing codes: Local, Surface, or Air. Containers with processing codes for Mixed Air, Mixed Surface, Working, and Single-Piece do not qualify for the SCF-pallet discount.
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240 Commercial Mail USPS Marketing Mail
243 Prices and Eligibility
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5.0 Additional Eligibility Standards for Nonautomation USPS Marketing Mail Letters, Flats, and Presorted USPS Marketing Mail Parcels
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[Revise the title of 5.4 to read as follows:]
5.4 Price Application for Machinable Letters
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5.4.2 3-Digit Price
[Revise the text of 5.4.2 to read as follows:]
The 3-digit price applies to qualifying letter-size machinable pieces placed in origin/entry SCF trays (regardless of quantity), to quantities of 150 or more pieces prepared in SCF trays for a single SCF, and to pieces placed in mixed trays in lieu of overflow SCF trays.
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[Revise the title of 5.5 to read as follows:]
5.5 Price Application for Nonmachinable Letters
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5.5.4 3-Digit Price
[Revise the text of 5.5.4 to read as follows:]
The 3-digit price applies to letter-size pieces subject to nonmachinable prices in quantities of 150 or more pieces for a 3-digit ZIP Code prepared in 3-digit and SCF trays (and overflow pieces in mixed trays) under 245.5.0.
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[Revise the title of 5.6 to read as follows:]
5.6 Price Application for Nonautomation Flats
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5.6.3 3-Digit Prices for Flats
[Revise the text of 5.6.3 to read as follows:]
The 3-digit price applies to flat-size pieces:
a. In groups of 50 or more and all pieces in a full tray of 5-digit/scheme or 3-digit/scheme pieces in a 3-digit/SCF flat tray (see 245.1.4).
b. When palletized under 705.8.0 and 705.10.0 through 705.13.0, in a 3-digit/scheme/SCF bundle of 10 or more pieces.
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7.0 Eligibility Standards for Automation USPS Marketing Mail
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7.4 Price Application for Automation Letters
7.4.1 General
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[Revise the text of item b. to read as follows:]
b. Groups of 150 or more pieces in SCF trays and all pieces in origin/entry SCF trays (regardless of quantity) qualify for the 3-digit price. Pieces placed in mixed trays under 245.7.5 in lieu of SCF overflow trays also are eligible for 3-digit prices.
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245 Mail Preparation
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13.0 Preparing Presorted Heavy Printed Matter Parcels
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13.3 Preparing Machinable Parcels
13.3.1 Sacking
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[Revise the text of item c. to read as follows:]
c. Mailers must note on the postage statement whether they applied the piece count or weight, except for USPS Ship mailings prepared under 705.2.6.
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700 Special Standards
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705 Advanced Preparation and Special Postage Payment Systems
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8.0 Preparing Pallets
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8.10 Pallet Presort and Labeling
8.10.1 First-Class Mail — Letter Trays or Flat Trays
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[Revise the text of items b. and c., respectively, to read as follows:]
b. Origin SCF/LPC (local mail). Required; no minimum. Pallets contain trays destined for the 3-digit ZIP Codes serviced by the origin SCF/LPC facility in L005 for letters, and L016 for flats. Labeling:
1. Line 1: L005, Column B for letters; L016, Column B for flats.
2. Line 2: “FCM LTRS” or “FCM FLTS,” followed by “SCF.”
c. SCF/LPC. Required. Pallets contain trays destined for the 3-digit ZIP Codes in L005 for letters; L016 for flats. Labeling:
1. Line 1: L005, Column B for letters; L016, Column B for flats.
2. Line 2: “FCM LTRS” or “FCM FLTS,” followed by “SCF.”
[Add a new item d. to read as follows:]
d. Mixed. Required; no minimum. Mailers must place trays containing pieces paid at the single-piece price on the mixed pallet, unless required to be presented separately by special postage-payment authorization or customer-service agreement (CSA). Labeling:
1. Line 1: “MXD WKG.”
2. Line 2: “FCM LTRS” or “FCM FLTS,” followed by “WKG.”
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9.0 Combining Bundles of Automation and Nonautomation Flats in Flat Trays and Sacks
9.1 Periodicals
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9.1.3 Bundles With Less Than 6 Pieces
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[Delete item d. in its entirety.]
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15.0 Combining USPS Marketing Mail Flats, Bound Printed Matter Flats, and Periodicals Flats
15.1 Basic Standards
15.1.1 General
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[Revise the text of item h. to read as follows:]
h. Each comailing containing Bound Printed Matter flats must meet the following requirements:
1. Except under 15.1.1h2, BPM flat-sized pieces must not weigh more than 20 ounces when combined in applicable bundles, and must be entered at destination sectional center facility (DSCF)/local processing center (LPC) on 5-digit or 3-digit/sectional center facility (SCF) level pallets, or at a destination delivery unit (DDU)/sorting and delivery center (S&DC).
2. BPM flat-sized pieces may weigh up to 24 ounces when combined in carrier-route (CR) level bundles on a pallet included in no less than SCF/3D sortation entered at an SCF/LPC. BPM flat-sized pieces must not exceed 20 ounces if prepared in the CR-level bundle with certain Periodicals pieces that may weigh more than 20 ounces. The maximum number of BPM pieces weighing more than 20 ounces up to the maximum of 24 ounces must not exceed 50 percent of each mailing.
[Delete item i. in its entirety.]
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The Postal Service will incorporate these revisions into the next edition of the online DMM, which is available via Postal Explorer® at pe.usps.com.
— Product Classification,
Product Solutions, 8-6-26
