Announcements
11/19/2025
DELIVERY - Southern Area – South Carolina District Sunset Post Office (29685) – Closed Indefinitely
Presentations
11/18/2025
Addressing and NCOALink Modernization
Release Notes
11/16/2025
November 16 2025 Release Notes
Announcements
11/14/2025
INFORMATIONAL - Web Tools Migration Webinar
Announcements
11/14/2025
INFORMATIONAL - Scheduled Commercial Systems Activities November 15, 2025
Announcements
11/14/2025
INFORMATIONAL - January 2026 Competitive Price Change
Announcements
11/14/2025
DELIVERY - WestPac -CO-WY District Poncha Springs (81242) - Closed
Announcements
11/14/2025
INFORMATIONAL - Peak Season Network Update Webinars - Follow Up
Announcements
11/13/2025
INFORMATIONAL - January Price Change 2026 - Commercial System Releases January 4, 2026
Announcements
11/13/2025
INFORMATIONAL - Important Update: Periodicals Mailing Privileges Application Process
Presentations
11/12/2025
Addressing Modernization - API
Fact Sheets
11/12/2025
USPS Ship Package Data Feeds

This document outlines the steps for shippers to access package data feeds through the USPS Informed Visibility Mail Tracking & Reporting (IV-MTR) application.

Technical Specifications
11/12/2025
Addressing API Specifications
Technical Specifications
11/12/2025
Addressing API - Vendors
Technical Specifications
11/12/2025
Addressing API - End Users - Tech Sheet
Announcements
11/10/2025
INFORMATIONAL - CY2026 Promotions Webinar
Announcements
11/10/2025
INFORMATIONAL - Service Improvement through Increased Capacity
Technical Specifications
11/10/2025
National Change of Address - API
User Guides
11/10/2025
2026 Integrated Technology Enrollment Guide
Announcements
11/07/2025
DELIVERY - Atlantic Area – North Carolina District Chapel Hill PO (27514) - Resumed
User Guides
11/07/2025
Viewing MGI Credit Balances and Postage Statements
Announcements
11/07/2025
Updates from the National PCC Program Office
Announcements
11/06/2025
INFORMATIONAL - API System Maintenance November 19, 2025
Announcements
11/06/2025
INFORMATIONAL - USPS APIs System Maintenance - 11-6-2025
Announcements
11/06/2025
INFORMATIONAL - UPS Air Cargo Accident 11-4-2025
Release Notes
11/06/2025
November 6 2025 Release Notes
Announcements
11/05/2025
INFORMATIONAL – Register Early for NPF 2026
Announcements
11/05/2025
Register Early for NPF 2026 and Take Advantage of Unbeatable Savings
Announcements
11/05/2025
INFORMATIONAL - International Service Resumption of Mail - November 7, 2025
Announcements
11/04/2025
DELIVERY - Atlantic Area CT District Moosup Post Office 06354 Resumes Operations
Announcements
11/04/2025
INFORMATIONAL - USPS APIs System Maintenance November 4, 2025
Announcements
11/04/2025
INFORMATIONAL - Mail Growth Incentive 2024 Postage Credits Expire
Announcements
11/03/2025
INFORMATIONAL - Web Tools API Migration
Data Files
11/03/2025
October 2025 Nixie Volume

This spreadsheet contains the UAA statistics for October 2025.

Announcements
11/03/2025
INFORMATIONAL - Envelope Change from Tyvek to Poly
Announcements
10/31/2025
DELIVERY – Atlantic Area – New Jersey – Milford, NJ Post Office 08848 - Office Temporarily Closed
Announcements
10/31/2025
INFORMATIONAL - Delay of USPS Ship Release 22.0.0.0
Announcements
10/31/2025
INFORMATIONAL - Commercial System Releases – November 6, 2025
Announcements
10/31/2025
INFORMATIONAL - Postal Service November 2025 SDC Activations
Announcements
10/31/2025
INFORMATIONAL - St. Louis PSA Activation on November 1, 2025
Publications
10/31/2025
PCC Insider October 2025 Edition
Announcements
10/31/2025
November 2025 PCC Events Calendar In-Person, Virtual, or Hybrid PCC Events
Announcements
10/31/2025
INFORMATIONAL: Mail Spoken Here - October Edition
Technical Specifications
10/31/2025
Mail.xml Technical Specifications R63.0.0.0
Announcements
10/30/2025
INFORMATIONAL - USPS Ship Data Feeds - Daylight Savings Time November 2, 2025
Publications
10/29/2025
PCC Events (November 2025)
Presentations
10/29/2025
News You Need to Know from MTAC - October 2025
Announcements
10/29/2025
DELIVERY - WestPac Area - NV-UT District - Myton Post Office (84052) - Temporarily Closed
Announcements
10/28/2025
INFORMATIONAL: USPS APIs System Maintenance - October 28, 2025
Presentations
10/28/2025
Southern Area​ AIM Virtual Webinar Presentation - September 23, 2025