Tech Guides
04/14/2026
Applications/ Forms
04/13/2026
User Guides
04/13/2026
Provisioning Enterprise Payment (EPS) and USPS Ship (formerly Package Platform (PPC)) Data through Informed Visibility® (IV®)

This guide provides instructions for receiving Enterprise Payment System (EPS) and USPS Ship (formerly Package Platform Concept (PPC)) data through the IV Mail Tracking & Reporting (IV-MTR) application. Instructions include how to get access, create and manage a data feed, manage the address book, and manage data delegation.

Release Notes
04/09/2026
Quick Service Guides
04/07/2026
Enterprise Payment System (EPS) Deposit Instructions

These instructions include general technical information and instructions for sending electronic funds into your EPS account. The information here is designed for trust customers (and debit customers who need to initiate a fund transfer to cover a debit return problem).

FAQs
04/06/2026
Release Notes
04/03/2026
Release Notes
04/03/2026
Announcements
04/02/2026
Publications
04/02/2026
Data Files
04/02/2026
Data Files
04/01/2026
March 2026 Nixie Volume

This spreadsheet contains the UAA statistics for March 2026.

User Guides
03/30/2026
USPS APIs Terms and Conditions

ACKNOWLEDGEMENT AND ACCEPTANCE. Read this carefully before registering to use the USPS API services. By utilizing the APIs, you hereby ACCEPT ALL of the terms and conditions of this Agreement. 

Release Notes
03/29/2026
Release Notes
03/27/2026