User Guides
03/16/2026
Adjustments to Mail Growth Incentives Registration

MGI Customers can submit multiple requests to the Program Office to initiate discussions for adjusting existing Incentives Registration service requests that are in review.

User Guides
03/16/2026
Mail Growth Incentives New Registration User Guide

On September 27, 2023, the Postal Regulatory Commission (PRC) approved the request by the United States Postal Service (UPSP) to update the Mail Classification Schedule (MCS) by establishing two separate Mail Growth Incentives (MGI): the First-Class Mail Growth Incentive and the Marketing Mail Growth Incentive. These incentives will run simultaneously from January 1 through December 31.

Announcements
03/16/2026
INFORMATIONAL - New Portal to Premium Forwarding Service Commercial (PFSC)
Error Codes
03/16/2026
Known Issues List 3.12.2026
Contact Lists
03/16/2026
Business Acceptance Solutions & Major Mailer Support Directory

This document provides a contact list for Business Acceptance Solutions (formerly Business Mailer Support) & Major Mailer Support

 

Announcements
03/13/2026
INFORMATIONAL - Commercial System Releases – March 22, 2026
Announcements
03/13/2026
INFORMATIONAL - USPS APIs System Maintenance March 25, 2026
Announcements
03/13/2026
INFORMATIONAL - Expansion of Webinar API API Package Tracking Access Control, Address & NCOA APIs
Announcements
03/13/2026
INFORMATIONAL - Commercial Systems Releases – March 15, 2026
Announcements
03/13/2026
INFORMATIONAL - USPS APIs System Deployment March 15, 2026