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Release Notes
08/29/2025

August 31 2025 Release Notes

Announcements
08/28/2025

PROCESSING AND DISTRIBUTION - Normal Operations Have Resumed in the Chicago, IL RPDC

User Guides
08/28/2025

USPS Verification of Periodicals Advertising Percentage – Alternate Marked Copy Program

Announcements
08/27/2025

INFORMATIONAL: USPS APIs System Maintenance (8.27.25)

08/26/2025

2026 Integrated Technology Promotion

The 2026 Integrated Technology Guidebook provides you with all the details you need to successfully participate in this promotion. In the Guidebook you will find information on the eligibility, information on the My Products Portal, and more. Navigate the document via the buttons on the side to quickly access the information most relevant to you.

QUICK LINKS
Integrated Tech Enrollment Guide

Announcements
08/26/2025

DELIVERY - Atlantic Area – North Carolina District Hurricane Erin - Offices Reopened

Contact Lists
08/26/2025

Polywrap Manufacturer List

User Guides
08/26/2025

Domestic Merchant Returns API: User Guide

This user guide provides examples of XML transactions to the USPS Merchant Returns web service and guidance for installation.

Quick Service Guides
08/26/2025

PostalOne!® Contingency Plan

Publications
08/26/2025

Publication 401: Guide to the Manifest Mailing System

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. Please see here for more information.

08/25/2025

2026 Add-Ons

08/25/2025

2026 First-Class Mail Advertising Promotion

The 2026 First-Class Mail Advertising Guidebook provides you with all the details you need to successfully participate in the promotion. In the Guidebook you will find information on the eligibility of mailpieces, information on the My Products Portal, and more. Navigate the document via the buttons on the side to quickly access the information most relevant to you.

08/25/2025

2026 Tactile, Sensory & Interactive Promotion

The 2026 Tactile, Sensory & Interactive Guidebook provides you with all the details you need to successfully participate in this promotion. In the Guidebook you will find information on the eligibility of mailpieces, information on the My Products Portal, and more. Navigate the document via the buttons on the side to quickly access the information most relevant to you.

08/25/2025

2026 Continuous Contact Promotion

The 2026 Continuous Contact Guidebook provides you with all the information you need to successfully participate in this promotion. In the Guidebook you will find information on the eligibility of mailpieces, information on the My Products Portal, and more. Navigate the document via the buttons on the side to quickly access the information most relevant to you.

Announcements
08/25/2025