INFORMATIONAL - USPS APIs System Release Notification - October 14, 2026

INFORMATIONAL - USPS Expands Addressing and Geospatial Data Offerings

DELIVERY - International Resumption of Mail Service - Effective October 2, 2026

INFORMATIONAL - Mail Spoken Here - September Issue

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.

USPS APIs Release Notes

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

INFORMATIONAL: REMINDER: Electronic Verification System (eVS) Retirement

PROCESSING AND DISTRIBUTION: Eastern Processing Region - Birmingham, AL - Regional Processing and Distribution Center (RPDC)

Shape the Future of the PCC Network – Applications Open October 1

January 2027 Release Overview

INFORMATIONAL - Removal of the Dangerous Goods Check Box on Customs Forms

INFORMATIONAL - Executive Retirement - Margaret Pepe

INFORMATIONAL - October 12, 2026, Columbus Day Holiday Recommendations on Live Animal Shipping

Labeling List Changes Effective November 1, 2026

Effective November 1, 2026, the Postal Service™ will revise Labeling List(s) L001, L007, L012, L201, and L606 to reflect changes in mail processing operations. Mailers are expected to label according to these revised lists for mailings inducted on or after the November 1, 2026, effective date through December 31, 2026, expiration date. The changes will be published in the Postal Bulletin, Issue #22713.

USPS Ship Data Dictionary

Detailed information on the USPS Ship (Formerly Package Platform) data elements available through the Informed Visibility Mail Tracking & Reporting (IV-MTR) application. Please note that items in bold text were updated or added recently.

DELIVERY - Diplomatic Post Office (09880) resumes mailing services

INFORMATIONAL - RESOLVED - PostalOne! System – Post-Deployment Issues

INFORMATIONAL - Adjustments to Priority Mail and USPS Ground Advantage Service Expectations for Noncontiguous States and Territories

INFORMATIONAL - Commercial System Releases – October 4, 2026

INFORMATIONAL - Hawaii - Hurricane Nolo - Operations Weather Advisory

INFORMATIONAL - PostalOne! Alert - October 4, 2026

INFORMATIONAL - Eastern Region - Nor’easter - Operations Weather Advisory

DELIVERY - Sycamore Post Office (15364) - Suspended Temporarily

National PCC Week 2026 PCC Voice Challenge #PCCWeek2026

DELIVERY - International Suspension of Mail Service - Effective September 25, 2026

Update - Central Processing Region - Louisville, KY Processing and Processing and Distribution Center (P&DC)

DELIVERY - Atlantic Area – Maryland District - Hughesville Post Office (20637) - Temporarily Closed

INFORMATIONAL - Commercial System Releases September 24 & 29, 2026

Mailers Technical Advisory Committee (MTAC) Membership Roster and Vacancies

INFORMATIONAL - USPS APIs System Release Notification – September 24, 2026

2027 Labeling List and Mail Direction File Schedule

This is the Labeling Lists production schedule for 2027.

DELIVERY - PostalOne! System - Issue with Finalizing Parcel Mailings and Application of IMpb Noncompliance

DELIVERY - Postal Service Updates for September 2026 S&DC Activations

What is the Postal Customer Council Advisory Committee (PCCAC)?

PROCESSING AND DISTRIBUTION - – Indianapolis, IN Regional Processing and Distribution Center (RPDC) Delays

PROCESSING AND DISTRIBUTION - Amarillo, TX Regional Processing & Distribution Center Activate on September 28, 2026

MTAC UG-WG-TT Leadership Roster and Matrix

September 20 2026 Time Limited Price Change (TLPC) 2026 [October] Release Notes

Call for Presentations Open - Share Your Expertise at NPF 2027

INFORMATIONAL - Call for Presentations Open – Share Your Expertise at NPF 2027

National Virtual AIM Meeting - September 17, 2026 - Recording

ZIP Code Boundaries Order Form

ZIP Code Boundaries License Agreement

ZIP Code Boundaries GeoJSON Sample File

ZIP Code Boundaries Sample File

ZIP Code Boundaries Technical Guide

ZIP Code Boundaries Briefing Sheet

National Virtual AIM Meeting - September 17, 2026

Emerging Roads Order Form