Announcements
09/21/2025
INFORMATIONAL - Scheduled Commercial Systems Activities - Time Limited Price Change Release 2025 - 9.21.2025 - Completed
Release Notes
09/21/2025
September 21 2025 Release Notes (FAST)
Release Notes
09/21/2025
September 21 2025 Release Notes (TLPC)
Announcements
09/19/2025
NPF 2026 Complimentary Registration: First-Time NPF Attendee Contest
Announcements
09/19/2025
The Return of the PCC Monthly Calendar - Back Like It Never Left!
Release Notes
09/19/2025
Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Release Notes

These release notes summarize new features and enhancements implemented in deployments to the IV-MTR application.

Announcements
09/18/2025
INFORMATIONAL - Time Limited Price Change - Scheduled Commercial Systems Release 9.21.2025
Release Notes
09/18/2025
USPS APIs Release Notes

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

Contact Lists
09/18/2025
CASS™ Certified Products Guide: Residential Delivery Indicator Cycle O - (Expires July 31, 2028)
Contact Lists
09/18/2025
RDI™ Cycle O: Certified Products Guide (D) - (Expires July 31, 2028)

This document outlines the CASS/MASS certified vendors list for RDI™ Cycle O.