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
FAQs
11/12/2025
USPS PTR2 API Known Issues
Tech Guides
11/12/2025
Guide to USPS Ship
Tech Guides
11/12/2025
USPS Ship Tech Sheet

USPS Ship is a modernized platform enabling commercial package payment, verification, and end-to-end visibility for a wide array of domestic and international products.

Announcements
11/10/2025
INFORMATIONAL - CY2026 Promotions Webinar