02/26/2026
Enterprise Payment System Terms and Conditions
This Terms and Conditions of Use Agreement (this "Agreement") is a legal agreement between you ("You" or "Your" or "User" or "Mailer") and the United States Postal Service, an Independent Establishment of the Executive Branch of the United States Federal Government ("USPS" or "Postal Service"). The Agreement sets forth the terms and conditions for Your use of the USPS Enterprise Payment System. User acknowledges and agrees that he, she or the entity User has accepted the Agreement on behalf of is solely responsible for and shall abide by these Terms and Conditions of Use as well as all policies, procedures and regulations of the United States Postal Service.
02/26/2026
Provisioning Mail Quality Data with Informed Visibility® Mail Tracking and Reporting
Mail Quality Data (MQD-IV) leverages the Informed Visibility® Mail Tracking & Reporting (IV®-MTR) application to enable mailers to receive uncapped Mail Quality Data. Detailed error data from the Mailer Scorecard is available for Full Service, Move Update, eInduction, and Seamless Acceptance.
02/05/2026
Mailing and Shipping Solutions Center (MSSC) Topics
List of topics the MSSC can assist with. To reach the MSSC, email us at MSSC@usps.gov or call 1-877-672-0007 from 7:00AM – 7:00PM CT.
12/29/2025
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.
12/11/2025
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.