User Guides
01/12/2026
Tracking Access Control Tech Sheet

Package Tracking allows seamless integration of real-time tracking information into business systems, enabling monitoring of USPS package status from shipment to delivery.  USPS is upgrading tracking data access to enhance security and combat fraud by modernizing and securing customer access.

Announcements
01/12/2026
INFORMATIONAL - USPS Returns Package Quality Noncompliance Assessments
Announcements
01/11/2026
DELIVERY: Southern Area - Texas 3 District -Stanton Post Office (79782) - Operations Temporarily Suspended
Announcements
01/09/2026
DELIVERY - Hewitt Post Office (07421) - Temporarily Closed
Tech Guides
01/09/2026
2026 Promotions Calendar and Technical Guide
Announcements
01/08/2026
Earn a Free Professional Development Certification From the PCCAC
Announcements
01/08/2026
INFORMATIONAL - USPS Mail Flow 101 Webinar Posted To PostalPro
Announcements
01/08/2026
INFORMATIONAL: 2026 Southern Area AIM Meeting - Orlando, Florida - SAVE THE DATE!
Announcements
01/08/2026
INFORMATIONAL: Federal Register: Manifest Mailing System Retiring
Presentations
01/08/2026
USPS Mail Flow 101 Webinar Recording
Announcements
01/08/2026
INFORMATIONAL - Postal Service Updates for January and February 2026 SDC Activations
Announcements
01/07/2026
DELIVERY - International Resumption of Mail Service - Effective January 9, 2026
Announcements
01/07/2026
INFORMATIONAL - USPS Ship - Updated Guidance on Assessment Dispute Period
Announcements
01/07/2026
INFORMATIONAL - Final Web Tools Migration Notification Must Migrate NOW
Announcements
01/07/2026
INFORMATIONAL - USPS APIs System Maintenance Notice January 24, 2026
Announcements
01/07/2026
DELIVERY - Atlantic Area – Pennsylvania 1 District - West Hickory Post Office (16370) - Suspended Temporarily
Data Files
01/06/2026
ACS Tables: PARS 2025

This spreadsheet contains 12 tables outlining ACS volume and cost for UAA Mail from FY2025.

  • 01/06/2026

    Base Tables: PARS 2025

    This spreadsheet contains 44 base tables focusing on postal operations, cost, and volume of handling UAA mail from FY2025.

  • 01/06/2026

    Class Tables: PARS 2025

    This spreadsheet contains 64 class tables that provide cost and volume by class of mail, presort category, and shape from FY2025.

  • 01/06/2026

    Volume Tables: PARS 2025

    This spreadsheet contains 3 volume tables that provide summary data by class of mail, shape, presort category, and disposition of UAA Mail.

    • Presentations
    01/06/2026
    USPS Mail Flow 101 Webinar
    Presentations
    01/06/2026
    USPS Ship Webinar USPS Ship Overview, Migration and Enrollment Slides

    USPS Ship Webinar: USPS Ship Overview, Migration, and Enrollment Slides

    FAQs
    01/06/2026
    USPS Ship Frequently Asked Questions

    USPS Ship Frequently Asked Questions

    Tech Guides
    01/06/2026
    Guide to USPS Ship
    Tech Guides
    01/06/2026
    USPS Ship Tech Sheet

    USPS Ship is a modernized platform enabling commercial package payment, verification, and end-to-end visibility for a wide array of domestic and international products.