Labeling List Changes Effective December 1, 2026

Effective December 1, 2026, the Postal Service™ will revise Labeling List(s) L001, L004, L009, L010, L012, L015, L016, L201, L602, L605, 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 December 1, 2026, effective date through January 31, 2027, expiration date. The changes will be published in the Postal Bulletin, Issue #22715.
 

Delivery - Hughesville Post Office (20637) - Resumes Operations

INFORMATIONAL - Scheduled Maintenance for November 14, 2026 – Possible Disruption with USPS Payments API

Informed Delivery API Release Notes V1.0.3

Informed Delivery API Technical Specifications V1.0_5.1

INFORMATIONAL - USPS APIs System Release Notification - REVISED

INFORMATIONAL - Oracle PSU Patching - PPI, PASS, MANIF, GEO, and ADP

INFORMATIONAL - Commercial System Releases – October 28, 2026 and November 1, 2026

INFORMATIONAL - PostalOne! Alert – October 25, 2026

INFORMATIONAL - Informed Delivery Mailer Campaign Portal (MCP) Scheduled Outage on October 24

INFORMATIONAL - Postal One System Promotions Not Applied to Postal Wizard Statements

November 1 2026 Program Registration 31.4.0.0 Pre-Release Notes

Mailers Technical Advisory Committee (MTAC) Membership Roster and Vacancies

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.

Plus One Product Requirements (Technical) (Updated 10/23/26)

Plus One Updated 10/23/26

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.

Intelligent Mail® for Small Business (IMsb) Fact Sheet

This fact sheet contains an overview of the IMsb Tool, its benefits, and how it works.

DELIVERY - UPDATE - Akron Post Office (35441) Suspended Temporarily

INFORMATIONAL - European Union Requirements for Product Identifiers Effective November 1, 2026

Mail.xml Technical Specifications for FAST 16.0

Mail.xml Technical Specifications for FAST 14.0A

DELIVERY - Suspension of Mail Service to Argentina - Effective October 23, 2026 - November 11, 2026

PTR2 Release Notes_DD_10_24_26

PCC National Monthly Touchpoint (October)

DELIVERY - Akron Post Office (35441) Permanently Suspended

INFORMATIONAL - Executive Detail - Vice President, Strategic Sales - Sara Bambrough

INFORMATIONAL - FY2027 Peak Season Network Update Webinars

Delivery - Southern Area Alabama-Mississippi District Walnut Grove PO 35990 Temporarily Suspended

Delivery - Southern Area – Florida 1 – Valparaiso 32580 Temporary Service Suspension

October 25 2026 EPS 8.8.0.0 Release Notes

October 18 2026 PO! 64.1.2.0 Release Notes

DELIVERY - Southern Area -Texas 2 District - Matagorda Post Office (77457) Resuming Operations

Step Into Leadership: Apply Now for the USPS National AIM Industry

INFORMATIONAL - Commercial System Releases – Week of October 24, 2026

PTR1 Release Notes_DD_10_17_26

INFORMATIONAL - RESOLVED - PostalOne! System – INCIDENT 11118454 Extended Processing Times for Large Mail.XML Mailings

INFORMATIONAL - New Commercial Organization

INFORMATIONAL - Chief Processing & Distribution Office Reorganization

INFORMATIONAL - USPS APIs System Release Notification – October 15, 2026

INFORMATIONAL - USPS APIs System Release Notification October 28, 2026

DELIVERY - Southern Area - FL1 District - 3 Digit Zip Code Area 324 & 325 All Operations Restored

PCCAC Candidate Application 9.28.2026

Mail Service Provider (MSP) - Full-Service Certified Mailers

A Mail Service Provider (MSP) offers a variety of solutions to prepare and present Full-Service presort mailings. For more information regarding Certified MSPs, please follow this link: https://postalpro.usps.com/full-service-cert/fact-sheet

eDoc Submitter Credit Enrollment GuIde

Placeholder Page

2027 Promotions Webinar Recording

NOTE: THE WEBINAR BEGINS AT THE 18:40 MARK

Recording of the 2027 Promotions Webinar going over details of the various promotions and add-ons.

2027 Promotions Webinar Slides

Slides for the 2027 Promotions Webinar providing details on the various promotions offered.

EU Customs Change Release Overview

USPS MCAT - TechSheet

PROCESSING & DISTRIBUTION: Update - Hurricane Isaias - Gulf Region of U.S. - Processing Facilities Resume Operations

DELIVERY: Update - Southern Area - Florida 1 - 3 Digit Zip Code Areas - 324 & 325 Operations Restored