Announcements
06/24/2026
INFORMATIONAL - Enterprise Payment System (EPS) – INCIDENT #10784524 Processing Postage Statement Error
Publications
06/24/2026
MGI Credit Claim Request Deck
Data Files
06/24/2026
Updated List: Service Type Codes for Intelligent Mail® Package Barcode (IMpb)

This document provides the updated service type codes for  Intelligent Mail® Package Barcodes.

Announcements
06/23/2026
INFORMATIONAL - Domestic HAZMAT Handling and Noncompliance Fees
Announcements
06/23/2026
DELIVERY - WestPac Area - California 1 District - Santa Rosa Annex Post Office (95407) - Relocation
Presentations
06/23/2026
Pop-Up Mini-Cafe: Site Synergy: WestPac PCCs Lead the Way Mini Café
Presentations
06/23/2026
MGI Credit Claim Request – Transferring credits to MSP
Presentations
06/23/2026
MGI Credit Claim Request Video
FAQs
06/23/2026
Mail Growth Incentives FAQs
Announcements
06/22/2026
INFORMATIONAL - Updates To: USPS Modernization Through Package Equipment Upgrades In June 2026
Release Notes
06/18/2026
PTR2 Release Notes_DD_06_22_26
Announcements
06/18/2026
INFORMATIONAL - Commercial System Releases July 1, 2026
Announcements
06/17/2026
INFORMATIONAL: USPS APIs System Release Notification - June 24, 2026
Announcements
06/17/2026
INFORMATIONAL: USPS APIs Systeme Release Notification - June 24, 2026
Announcements
06/17/2026
DELIVERY - Resumption of Mail Service to Niue - Effective June 22, 2026
Announcements
06/17/2026
INFORMATIONAL - Postal Service Prepares for Championship Celebration Parades
Announcements
06/17/2026
INFORMATIONAL - Retirement of USPS Tracking v3.0 and Tracking Webhook Subscriptions v3.0 APIs
Tech Guides
06/16/2026
PostalOne! Release 64.0.0.0 Mail.XML PROD WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ PROD Release 64.0.0.0

Tech Guides
06/16/2026
PostalOne! Release 64.0.0.0 Mail.XML TEM WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ TEM Release 64.0.0.0

Tech Guides
06/16/2026
PostalOne! Release 64.0.0.0 Mail.XML PrePROD WSDLs
Tech Guides
06/16/2026
PostalOne! Release 64.0.0.0 Mail.XML CAT WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ CAT Release 64.0.0.0

Presentations
06/16/2026
PCC National Monthly Touchpoint (June)

 

 

PCC National Monthly Touchpoint (June)

Passcode: k8tv2jE+

Announcements
06/16/2026
INFORMATIONAL - Plant-Verified Drop Shipment Updates for July 12, 2026 Price Change
Announcements
06/16/2026
PCC Week Speaker Request Survey
Release Notes
06/16/2026
PTR2 Release Notes_DD_06_16_26
Announcements
06/16/2026
DELIVERY - Rillito Post Office (85654) - Temporarily Closed
Announcements
06/16/2026
INFORMATIONAL - USPS Webinar - AI-Powered Omnichannel Performance TODAY June 16, 2026
Announcements
06/12/2026
Power-up your Public Speaking Skills with Chris Lien
Release Notes
06/12/2026
PTR2 Release Notes_DD_06_13_26
Announcements
06/12/2026
DELIVERY - Commercial System Releases (June 20 – June 26)
Announcements
06/12/2026
DELIVERY - NC District Waco Post Office (28169) Temporarily Closed
Announcements
06/12/2026
DELIVERY - South Colton Post Office (13687) - Suspended Temporarily
Announcements
06/12/2026
INFORMATIONAL - USPS Occupancy Trends Product
Announcements
06/12/2026
INFORMATIONAL - USPS Population Mobility Trends Product
Release Notes
06/12/2026
July 2026 Release Overview

Note: For the latest technical specifications, please see the July 2026 Price Change Release Notes as they are published. Mail.dat and Mail.XML updates required for this release. 

Announcements
06/10/2026
INFORMATIONAL - July Price Change 2026 - Commercial System Releases June 28, 2026
Announcements
06/10/2026
INFORMATIONAL - Mailer ID (MID) Validation for Payments API June 22, 2026
Announcements
06/10/2026
DELIVERY - International Service Resumption Notice effective June 12, 2026
Announcements
06/09/2026
DELIVERY - Lone Rock Post Office (50559) - Suspended Temporarily
Presentations
06/09/2026
Atlantic AIM Presentation - June 3, 2026
Contact Lists
06/09/2026
Atlantic AIM Leadership 2026
Announcements
06/08/2026
INFORMATIONAL - New Mail.dat client for July 2026 Price Change June 28, 2026
Announcements
06/08/2026
INFORMATIONAL - USPS APIs System Release Notification June 10, 2026
Announcements
06/06/2026
INFORMATIONAL: USPS APIs System Deployment [CR# TBD] - Saturday, June 27, 2026
Announcements
06/06/2026
INFORMATIONAL: USPS APIs System Deployment - Sunday, June 21, 2026
Announcements
06/06/2026
INFORMATIONAL: USPS APIs System Deployment - Sunday, June 7, 2026
Announcements
06/05/2026
PCC Week 2026 Topic Ideas
  • 06/05/2026

    PCCAC Marketing and Communications Newsletter May 2026 Edition

    • Announcements
    06/05/2026
    INFORMATIONAL - Commercial System Releases (June 11 – June 19)
    Announcements
    06/05/2026
    DELIVERY - Clarkson Post Office (14430) - Suspended Temporarily