Announcements
08/21/2026
INFORMATIONAL - Upcoming USPS.com Maintenance on September 19, 2026
Release Notes
08/21/2026
August 27, 2026 COP Release Notes
Release Notes
08/21/2026
August 30 2026 FAST Release Notes
Release Notes
08/21/2026
Enterprise Payment System (EPS) Release Notes-August 30, 2026

On Sunday, August 30, 2026, the United States Postal Service will implement the following software change:
• Enterprise Payment System (EPS) 8.7.0.0
These Pre-Release Notes provide the contents of the release and affected subsystems.
The section titled Corrections to Known Issues is derived from External Trouble Reports (ETRs) for inclusion in this release.
This document is prepared based on the knowledge available at the time of its publication; any element of its contents is subject to change prior to the release.

Release Notes
08/21/2026
PTR2 Release Notes_DD_08_22_26
Publications
08/20/2026
USPS Speaker Topics for PCC Events
Announcements
08/20/2026
PCC Alert: NEW PCC Voice Challenge #PCCIndustrymember
Announcements
08/20/2026
INFORMATIONAL - Commercial System Release – August 23, 2026
Contact Lists
08/20/2026
CASS™ Certified Products Guide: Residential Delivery Indicator Cycle O - (Expires July 31, 2028)
Contact Lists
08/20/2026
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
08/20/2026
CASS™ Certified Products Guide: M L O C R Mailers/Users Data File Cycle O - (Expires July 31, 2028)
Contact Lists
08/20/2026
CASS™ Certified Products Guide: M L O C R Mailers/Users Cycle O - (Expires July 31, 2028)
Contact Lists
08/20/2026
CASS™ Certified Products Guide: M L O C R Service Bureaus Data File Cycle O - (Expires July 31, 2028)
Contact Lists
08/20/2026
CASS™ Certified Products Guide: M L O C R Service Bureaus Cycle O - (Expires July 31, 2028)
Contact Lists
08/20/2026
CASS™ Certified Products Guide: M L O C R Hardware Manufacturers Data File Cycle O - (Expires July 31, 2028)
Contact Lists
08/20/2026
CASS™ Certified Products Guide: M L O C R Hardware Manufacturers Cycle O - (Expires July 31, 2028)
Contact Lists
08/20/2026
CASS™ Certified Products Guide: Z4CHANGE Data File Cycle O - (Expires July 31, 2028)
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08/20/2026
CASS™ Certified Products Guide: Z4CHANGE Cycle O - (Expires July 31, 2028)
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08/20/2026
CASS™ Certified Products Guide: Vendor/Service Licensees Data File Cycle O - (Expires July 31, 2028)
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08/20/2026
CASS™ Certified Products Guide: Vendor/Service Bureaus Licensees Cycle O - (Expires July 31, 2028)
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08/20/2026
CASS™ Certified Products Guide: DSF2® Licensees Data File Cycle O - (Expires July 31, 2028)
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08/20/2026
DSF2® Licensees Cycle O: Certified Products Guide - (Expires July 31, 2028)
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08/20/2026
DPV® Licensees Data File Cycle O: Certified Products Guide (D) - (Expires July 31, 2028)
Contact Lists
08/20/2026
DPV® Licensees Cycle O: Certified Products Guide - (Expires July 31, 2028)
Contact Lists
08/20/2026
CASS™ Software Manufacturers Data File Cycle O: Certified Products Guide (D) - (Expires July 31, 2028)