Announcements
04/17/2026
INFORMATIONAL - REMINDER - July 2026 Market Dominant Price Change Filing Webinar - TODAY - Friday, April 17, 2026
Release Notes
04/17/2026
PTR2 Release Notes_DD_04_18_26
Presentations
04/16/2026
PCCAC: News You Need to Know From MTAC- April 2026

 

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Announcements
04/16/2026
DELIVERY -International Service Resumption of Mail Service to Qatar - Effective April 17, 2026
Announcements
04/16/2026
DELIVERY - West Meridian Post Office (39307) - Suspended Temporarily
Error Codes
04/16/2026
Known Issues List 4.14.2026
Release Notes
04/16/2026
USPS APIs Release Notes

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

Data Files
04/16/2026
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. Please note that items in bold text were updated or added recently.

Contact Lists
04/16/2026
Mail Service Provider (MSP) - Full-Service Certified Mailers

A Mail Service Provider (MSP) offers a variety of solutions to prepare and present Full-Service presort mailings. For more information regarding Certified MSPs, please follow this link: https://postalpro.usps.com/full-service-cert/fact-sheet

 

Announcements
04/15/2026
INFORMATIONAL - 2026 Labeling List and Mail Direction File (MDF) Timeline