DPV® Licensees Cycle O: Certified Products Guide - (Expires July 31, 2028)

CASS™ Software Manufacturers Data File Cycle O: Certified Products Guide (D) - (Expires July 31, 2028)

CASS™ Software Manufacturers Cycle O - (Expires July 31, 2028)

CASS™/MASS™ Certified Products Guide - All Sections Data Files Cycle O - (Expires July 31, 2028)

This document contains the certified vendors list for CASS™ and MASS™ products for Cycle O.

Z4 Info File

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

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.

PCC Alert: PCC Education & Membership Virtual Training Dates

INFORMATIONAL - Lives Holiday Shipping Recommendations September 7, 2026

Provisioning EMAS API Invoices Data in Informed Visibility® Mail Tracking & Reporting (IV®-MTR)

This guide provides instructions for receiving EMAS API Invoices data through the IV Mail Tracking & Reporting application.

INFORMATIONAL - Update – AIM Meeting Changed from Atlantic Area to All Areas

DELIVERY - International Service Suspension Notice - Effective August 21, 2026

PCC National Monthly Touchpoint (August)

https://usps.zoomgov.com/rec/share/mmHEzZ9KJ55JNSvvwYsQ7oqAC9pfUbej81JmcS2_SbkCyEwGN6xmM-zv77i4lODa.ErIaxuO6YeI_NjKV

Passcode: r23k++&k

DELIVERY: WestPac Area – NV-UT District - Sierra Post Office (89506) and Reno Post Office (89510) - Resume Operations

INFORMATIONAL: RESOLVED - Duplicate Refunds Reversal

INFORMATIONAL - Atlantic Area –Virtual AIM Meeting September 17th, 2026

Known Issues List 8.11.2026

Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Development Tracker

This document provides a list of active IV-MTR work to be as well as items completed in the current fiscal year.

*Please note, Postal Pro is the only source for a current IV-MTR Development log as updates will be made on an ongoing basis.

Processing and Distribution - Updates To: USPS Modernization Through Package Equipment Upgrades in August 2026

INFORMATIONAL - RESOLVED - Business Customer Gateway Issues

DELIVERY: WestPac Area: CO-WY District - Hasty Post Office (81044) - Temporarily Closed

INFORMATIONAL - Business Customer Gateway Issues

INFORMATIONAL - RESOLVED - USPS Applications - INCIDENT 10942833 Intermittent Unavailability and Errors

INFORMATIONAL - Hawaii - Tropical Storm Lala – Operations Weather Advisory

INFORMATIONAL -UPDATE - PostalOne! Release – August 16, 2026

Business Acceptance Solutions & Major Mailer Support Directory

This document provides a contact list for Business Acceptance Solutions (formerly Business Mailer Support) & Major Mailer Support