Release Notes
09/04/2026
Enterprise Payment System (EPS) Release Notes-September 13, 2026
Announcements
09/03/2026
INFORMATIONAL - USPS APIs System Deployment – September 13, 2026
Announcements
09/03/2026
INFORMATIONAL - USPS APIs System Deployment [CR# TBD] – September 12, 2026
Announcements
09/03/2026
INFORMATIONAL - USPS APIs System Deployment – September 6, 2026
Announcements
09/03/2026
PROCESSING AND DISTRIBUTION - USPS Modernization Through Package Equipment Upgrades in September 2026
Announcements
09/03/2026
PROCESSING AND DISTRIBUTION - Update - Western Region - Beaumont, TX - Tropical Storm Edouard Impacts
User Guides
09/03/2026
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.

Technical Specifications
09/03/2026
National Change of Address - API
FAQs
09/03/2026
USPS PTR2 API Known Issues
User Guides
09/03/2026
Provisioning Informed Delivery® Post-Campaign (IDPC) Data in Informed Visibility® Mail Tracking & Reporting (IV®-MTR)

This guide provides instructions for receiving Informed Delivery Post-Campaign (IDPC) detailed data through the IV Mail Tracking & Reporting (IV-MTR) application. Instructions include how to access the application, create a one-time query, create and manage a data feed, manage the address book, and manage data delegation.