PCCAC Certification Webinar-Periodicals-News You Can Use with Eric Kisgen

https://usps.zoomgov.com/rec/share/M8ps4fmgUbh7GETfcJPufzBUgDDu4JlzdkvNAZ_ovwwndtERHb5uI9dfkz-I2s5p.hXAHSXDOya6b8hK1

Passcode: #5+8T1%R

INFORMATIONAL - Electronic Verification System (eVS) Retirement

INFORMATIONAL - Security Enhancements to USPS.com

Addresses API - Tech Sheet

CASS™ Certified Products Guide: Residential Delivery Indicator Cycle O - (Expires July 31, 2028)

RDI™ Cycle O: Certified Products Guide (D) - (Expires July 31, 2028)

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

CASS™ Certified Products Guide: M L O C R Mailers/Users Data File Cycle O - (Expires July 31, 2028)

CASS™ Certified Products Guide: M L O C R Mailers/Users Cycle O - (Expires July 31, 2028)

Guide to USPS Ship

CASS™ Certified Products Guide: M L O C R Service Bureaus Data File Cycle O - (Expires July 31, 2028)

CASS™ Certified Products Guide: M L O C R Service Bureaus Cycle O - (Expires July 31, 2028)

CASS™ Certified Products Guide: M L O C R Hardware Manufacturers Data File Cycle O - (Expires July 31, 2028)

CASS™ Certified Products Guide: M L O C R Hardware Manufacturers Cycle O - (Expires July 31, 2028)

CASS™ Certified Products Guide: Z4CHANGE Data File Cycle O - (Expires July 31, 2028)

CASS™ Certified Products Guide: Z4CHANGE Cycle O - (Expires July 31, 2028)

CASS™ Certified Products Guide: Vendor/Service Licensees Data File Cycle O - (Expires July 31, 2028)

CASS™ Certified Products Guide: Vendor/Service Bureaus Licensees Cycle O - (Expires July 31, 2028)

CASS™ Certified Products Guide: DSF2® Licensees Data File Cycle O - (Expires July 31, 2028)

DSF2® Licensees Cycle O: Certified Products Guide - (Expires July 31, 2028)

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

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.

DELIVERY - WestPac Area - ID-MT-OR District - Antelope Post Office – Resume Operations

DELIVERY - WestPac Area - ID-MT-OR District - Paulina Post Office – Resume Operations

INFORMATIONAL - Discontinuance of USPS Tracking Labels

USPS APIs Release Notes

For the latest updates, please review the USPS APIs Release Notes.

DELIVERY - White Swan Post Office (98952) - Closed

INFORMATIONAL - Upcoming USPS.com outage on August 22, 2026

INFORMATIONAL - 2nd Reminder - POSTPONED – Addresses API 3.2.3 Access Postponed Until August 1, 2026

DELIVERY - Trail (97541) and Weston (97886) Post Offices Resume Operations

DELIVERY - Coal Creek (81221), Rockvale (81244) and Rye (81069) Post Offices Resume Operations

DELIVERY - Beverly Post Office (99321) Resume Operations

IMpb/IMmb Electronic File Transmission Requirements

INFORMATIONAL - UPDATE - Greensboro, NC Regional Processing and Distribution Center (RPDC) Power Outage

July MTAC Meeting

Enterprise Payment System (EPS) Release Notes-July 26, 2026

On Sunday, July 26, 2026, the United States Postal Service implemented the following software change:

Enterprise Payment System (EPS) 8.6.0.0
These 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.

Labeling List Changes Effective September 1, 2026

Effective September 1, 2026, the Postal Service™ will revise Labeling List(s) L007, L008, L012, L016, L201, L606, and L607 to reflect changes in mail processing operations. Mailers are expected to label according to these revised lists for mailings inducted on or after the September 1, 2026, effective date through October 31, 2026, expiration date. The changes will be published in the Postal Bulletin, Issue #22708.

 

***Updated - New Areas*** - Area District 5-digit ZIP Codes (AREADIST_ZIP5.TXT)

City/State ZIP Code Weekly Compare

3 Digit ZIP/AISU Office List (AISUREPT.TXT)

AIS Congressional District File (CONG_DIST.TXT)

AIS County Name Table Layout (AISCNTY.TXT)

AMS County Name Table (COUNTY_NAME_TABLE.TXT)

AMS Address Report: AISU Mailing List (ADDRREPT.TXT)

AISU ZIP Code Record and AISU Address Record Descriptions (AISULOUT.TXT)

AISU ZIP Code File (AISUZIPS.TXT)