Announcements
11/20/2025
INFORMATIONAL - Thanksgiving Holiday 2025 Shipping Recommendations for Lives Animals
Announcements
11/20/2025
INFORMATIONAL - Commercial System Releases – November 20, 2025
Data Files
11/20/2025
USPS Ship Data Dictionary

Detailed information on the USPS Ship (Formerly Package Platform) data elements available through the Informed Visibility Mail Tracking & Reporting (IV-MTR) application.

Release Notes
11/19/2025
Tracking API Access Control Changes Release Overview
Announcements
11/19/2025
DELIVERY - Southern Area – South Carolina District Sunset Post Office (29685) – Closed Indefinitely
User Guides
11/19/2025
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.

Presentations
11/18/2025
Addressing and NCOALink Modernization
Release Notes
11/18/2025
USPS APIs Release Notes

For the latest updates, please review the USPS APIs Release Notes.

FAQs
11/17/2025
USPS Ship Frequently Asked Questions

USPS Ship Frequently Asked Questions

Contact Lists
11/17/2025
Business Acceptance Solutions & Major Mailer Support Directory

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