Announcements
08/06/2026
INFORMATIONAL - Commercial System Release – August 11, 2026 (LBRO 20.0.1)
Data Files
08/06/2026
Z4 Info File

A downloadable ZIP file containing information related to the Z4 Info File

Data Files
08/06/2026
Early Warning System (EWS002C0.ZIP)

This file is the EWS production file and is updated weekly. This file contains the Early Warning System data file for the CASS™ and MASS™ certification process.

 

Release Notes
08/05/2026
PTR2 Release Notes_DD_08_08_26
Release Notes
08/05/2026
PTR2 Release Notes_DD_09_08_26
Announcements
08/05/2026
INFORMATIONAL - International Service Resumption - Effective August 7, 2026
Announcements
08/05/2026
PCC Events (August 2026)
Fact Sheets
08/05/2026
Addresses API - Tech Sheet
Announcements
08/04/2026
INFORMATIONAL: USPS APIs System Release Notification
Announcements
08/04/2026
INFORMATIONAL - Pacific Northwest Region – Wildfires
Announcements
08/04/2026
INFORMATIONAL - Addresses API 3.3.1 Access Controls Successfully Implemented
Announcements
08/04/2026
DELIVERY - Rosewood Post Office (99208) - Temporarily Closed
Data Files
08/04/2026
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 FY25.

 

*Please note, Postal Pro is the only source for a current IV-MTR Development log as updates will be made on an ongoing basis.

Tech Guides
08/04/2026
Guide to USPS Ship
Release Notes
08/04/2026
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.

User Guides
08/04/2026
Guide to eInduction
Announcements
08/03/2026
DELIVERY - Mead Post Office (99021) - Temporarily Closed
Announcements
08/03/2026
DELIVERY - Nine Mile Falls Post Office (99026) - Temporarily Closed
Tools
08/03/2026
PCC Event Form Template
Data Files
08/03/2026
July 2026 Nixie Volume

This spreadsheet contains the UAA statistics for July 2026.

Announcements
08/03/2026
INFORMATIONAL - Commercial System Releases – August 6 - August 14, 2026
Release Notes
08/03/2026
August 9, 2026 - Electronic Shortpaid Assessment System (eSAS) Release 47.2.0.0
Release Notes
08/03/2026
August 9, 2026 - Program Registration Release 31.1.0.0
Data Files
08/03/2026
Informed Visibility Mail Tracking & Reporting Machine Count

List of US Postal Service machines by site, including a description of each machine.

Data Files
08/03/2026
***Updated - New Areas*** - Area District 5-digit ZIP Codes (AREADIST_ZIP5.TXT)