Announcements
01/29/2026
INFORMATIONAL - MID Validation for Payments API
Data Files
01/29/2026
Z4 Info File

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

Data Files
01/29/2026
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
01/28/2026
INFORMATIONAL - 2026 Southern Area AIM Meeting - Orlando, Florida - REGISTRATION IS NOW OPEN!
Announcements
01/28/2026
INFORMATIONAL - Postal Service to host Last Mile Informational Webinar
Presentations
01/28/2026
Pop-Up Mini-Cafe: Exploring Communication Reach: Personal Feed vs. Private Group Dynamics
Announcements
01/28/2026
DELIVERY - International Service Suspension of Mail Service - Effective January 30, 2026
Announcements
01/27/2026
INFORMATIONAL - Updating Winter Storm Fern Continuing Extension Embargo for Lives Through Sunday February 1
Announcements
01/27/2026
PCC Innovation Challenge Guide
Announcements
01/27/2026
The All New-PCC Innovation Challenge