Presentations
10/22/2025
PCC National Monthly Touchpoint (October)
Announcements
10/22/2025
INFORMATIONAL - Commercial System Releases – October 26, 2025
Announcements
10/22/2025
INFORMATIONAL - Peak Season Network Webinars 2025
Release Notes
10/22/2025
October 30 2025 Release Notes
Release Notes
10/22/2025
USPS APIs Release Notes

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

Announcements
10/20/2025
DELIVERY - WestPac Area - AZ-NM District San Carlos Post Office (85550) - Resumed
Technical Specifications
10/20/2025
Mail.xml Technical Specifications R63.0.0.0
Technical Specifications
10/20/2025
Mail.dat Technical Specifications R63.0.0.0
FAQs
10/20/2025
USPS PTR2 API Known Issues
Release Notes
10/20/2025
January 2026 Release Overview