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