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.

  • 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
    Release Notes
    03/27/2026
    Data Files
    03/27/2026
    Labeling List Changes Effective May 1, 2026

    Effective May 1, 2026, the Postal Service™ will revise Labeling List(s) L007, L012, L014, L016, L051, L201, and L606 to reflect changes in mail processing operations. Mailers are expected to label according to these revised lists for mailings inducted on or after the May 1, 2026, effective date through June 30, 2026, expiration date. The changes will be published in the Postal Bulletin, Issue #22700.

    Announcements
    03/26/2026
    Announcements
    03/25/2026
    Beyond the Mail

    Turn USPS’s unmatched doorstep reach into smarter decisions with Beyond the Mail—powered by USPS Post Office and Collection Box Data, USPS Occupancy Trends, and USPS Population Mobility Trends for sharper planning across real estate, retail, logistics, and more.

    Release Notes
    03/25/2026