Release Notes
02/26/2026
User Guides
02/26/2026
Enterprise Payment System Terms and Conditions

This Terms and Conditions of Use Agreement (this "Agreement") is a legal agreement between you ("You" or "Your" or "User" or "Mailer") and the United States Postal Service, an Independent Establishment of the Executive Branch of the United States Federal Government ("USPS" or "Postal Service"). The Agreement sets forth the terms and conditions for Your use of the USPS Enterprise Payment System. User acknowledges and agrees that he, she or the entity User has accepted the Agreement on behalf of is solely responsible for and shall abide by these Terms and Conditions of Use as well as all policies, procedures and regulations of the United States Postal Service.

User Guides
02/26/2026
Provisioning Mail Quality Data with Informed Visibility® Mail Tracking and Reporting

Mail Quality Data (MQD-IV) leverages the Informed Visibility® Mail Tracking & Reporting (IV®-MTR) application to enable mailers to receive uncapped Mail Quality Data. Detailed error data from the Mailer Scorecard is available for Full Service, Move Update, eInduction, and Seamless Acceptance.

Data Files
02/25/2026
Labeling List Changes Effective April 1, 2026

Effective April 1, 2026, the Postal Service™ will revise Labeling List(s) L002, L005, L007, L012, L016, L051, L201, and L606 to reflect changes in mail processing operations. Mailers are expected to label according to these revised lists for mailings inducted on or after the April 1, 2026, effective date through May 31, 2026, expiration date. The changes will be published in the Postal Bulletin, Issue #22698.

Contact Lists
02/25/2026
USPS® Approved Manufacturers of Mailing Containers for Adult Birds

A list of contact information for adult bird container manufacturers that have been certified by USPS.

Data Files
02/24/2026
Pending Route Adjustment File

This Excel sheet details route adjustments for February 2026 thru April 2026.

Release Notes
02/22/2026
Release Notes
02/19/2026
Presentations
02/14/2026
Secure Destruction - A Primer for Mailers

This document provides information on the Secure Destruction, a Primer for Mailers webinar.

Contact Lists
02/14/2026
Secure Destruction Plant ZIP Look Up Table

This document provides a ZIP Code lookup table for Secure Destruction plants.

Release Notes
02/12/2026
Fact Sheets
02/12/2026
Manifest Mailing Systems Retirement Fact Sheet

The USPS is amending Mailing Standards of the United States Postal Service, Domestic Mail Manual (DMM) subsection 703.2.0 to retire the manifest mailing system (MMS). Effective April 1, 2026.

Release Notes
02/06/2026
User Guides
02/05/2026
Mailing and Shipping Solutions Center (MSSC) Topics

List of topics the MSSC can assist with. To reach the MSSC, email us at MSSC@usps.gov or call 1-877-672-0007 from 7:00AM – 7:00PM CT.

FAQs
02/05/2026
Presentations
02/04/2026
Last Mile Bidding Process-Slide Deck

Shippers who wish to access the DDU network will have the ability to propose a combination of volume, pricing and tender times at each location, with deliveries for successful bidders being made by USPS that same day or the next day, at the customer’s preference.

 

To view the presentation recording, please click here.