Presentations
04/16/2026
PCCAC: News You Need to Know From MTAC- April 2026

 

https://usps.zoomgov.com/rec/share/014XiJDyDB506s5L-7ImZuCR29adj-qAaJXZ97ibJO4-TYaPEB23pwpAZ1VeV_wd.mUNSVb1hvupvCRGb

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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.

Contact Lists
04/16/2026
CASS™ Certified Products Guide: Residential Delivery Indicator Cycle O - (Expires July 31, 2028)
Contact Lists
04/16/2026
RDI™ Cycle O: Certified Products Guide (D) - (Expires July 31, 2028)

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

Contact Lists
04/16/2026
CASS™ Certified Products Guide: M L O C R Mailers/Users Data File Cycle O - (Expires July 31, 2028)
Contact Lists
04/16/2026
CASS™ Certified Products Guide: M L O C R Mailers/Users Cycle O - (Expires July 31, 2028)
Contact Lists
04/16/2026
CASS™ Certified Products Guide: M L O C R Service Bureaus Data File Cycle O - (Expires July 31, 2028)