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

August 27, 2026 COP Release Notes

DELIVERY: WestPac Area – CO-WY District - Hasty Post Office (81044) – Resume Operations

INFORMATIONAL: USPS Scan Event Extract Modernization Updates

PCCAC: News You Need to Know from MTAC - July 2026

PROCESSING AND DISTRIBUTION - Update - Southeast Region – Tennessee – Severe Weather Impacts

INFORMATIONAL - Commercial System Releases – August 27, 2026 – September 4, 2026

Intelligent Mail Small Business (IMsb) Tool User Guide

Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Release Notes

These release notes summarize new features and enhancements implemented in deployments to the IV-MTR application.

USPS® Approved Manufacturers of Mailing Containers for Adult Birds

A list of contact information for adult bird container manufacturers that have been certified by USPS.

DELIVERY - Sierra Post Office (89506) - Temporarily Closed

INFORMATIONAL - Elevate Your Marketing Strategy with USPS 2027 Mailing Promotions Kickoff Webinar

INFORMATIONAL - National Change of Address (NCOA+) APIs through October 19, 2026

FY 2026 PS Form 3548 Review and Verification of Circulation

***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)

AISU Contact Information (AISUADDR.TXT)

Area District Finance File Specification (AREA_DIST_LAYOUT.TXT)

Area District Finance File (AREADIST.TXT)

Area/District 3-digit and 5-digit ZIP Code Assignments (AREA_DIST_ZIP.TXT)

Move to Competitive Street Addressing (MTC SA) List

This .txt file contains the MTC SA List.

PROCESSING AND DISTRIBUTION - Southeast Region – Tennessee - Severe Weather Impacts

INFORMATIONAL - Upcoming USPS.com Maintenance on September 19, 2026

August 30 2026 FAST Release Notes

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.

PTR2 Release Notes_DD_08_22_26

PCCAC Certification Webinar: First Class Mail with Scott Holton

https://usps.zoomgov.com/rec/share/-a3dpKwJeKuHl1AROH2kQDeLiR4EA-bjEs9kXKttaeByq3junZAHhBj3CJkls78.UQRI9TNZTYZQn58r

Passcode: #9f@nL0G

PCC Alert: NEW PCC Voice Challenge #PCCIndustrymember

INFORMATIONAL - Commercial System Release – August 23, 2026

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)

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)