Data Files
10/22/2026
Z4 Info File

A downloadable ZIP file containing information related to the Z4 Info File

Data Files
10/22/2026
Early Warning System (EWS002C0.ZIP)

This file is the EWS production file and is updated weekly. This file contains the Early Warning System data file for the CASS™ and MASS™ certification process.

 

Announcements
10/21/2026
DELIVERY - UPDATE - Akron Post Office (35441) Suspended Temporarily
Announcements
10/21/2026
INFORMATIONAL - European Union Requirements for Product Identifiers Effective November 1, 2026
Technical Specifications
10/21/2026
Mail.xml Technical Specifications for FAST 16.0
Technical Specifications
10/21/2026
Mail.xml Technical Specifications for FAST 14.0A
Announcements
10/21/2026
DELIVERY - Suspension of Mail Service to Argentina - Effective October 23, 2026 - November 11, 2026
Contact Lists
10/21/2026
Mailers Technical Advisory Committee (MTAC) Membership Roster and Vacancies
Release Notes
10/20/2026
PTR2 Release Notes_DD_10_24_26
Presentations
10/20/2026
PCC National Monthly Touchpoint (October)