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.

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. 

User Guides
03/24/2026
Tracking Access Control Tech Sheet

Package Tracking allows seamless integration of real-time tracking information into business systems, enabling monitoring of USPS package status from shipment to delivery.  USPS is upgrading tracking data access to enhance security and combat fraud by modernizing and securing customer access.

User Guides
03/16/2026
Adjustments to Mail Growth Incentives Registration

MGI Customers can submit multiple requests to the Program Office to initiate discussions for adjusting existing Incentives Registration service requests that are in review.

User Guides
03/16/2026
Mail Growth Incentives New Registration User Guide

On September 27, 2023, the Postal Regulatory Commission (PRC) approved the request by the United States Postal Service (UPSP) to update the Mail Classification Schedule (MCS) by establishing two separate Mail Growth Incentives (MGI): the First-Class Mail Growth Incentive and the Marketing Mail Growth Incentive. These incentives will run simultaneously from January 1 through December 31.

User Guides
03/12/2026
MyPFS Portal Tutorial Video

A guided tour on how to use and navigate the new MyPFS Portal.

User Guides
03/12/2026
MyPFS Overview User Guide March 2026

This is a guide describing the new MyPFS product feature in the My Product Portal released in March 2026.

User Guides
03/12/2026
Premium Forwarding Service Commercial External User Guide

User Guide for the Premium Forwarding Service Commercial application. 

User Guides
03/11/2026
USPS Business Portal (COP) Onboarding User Guide

The United States Postal Service (USPS)Business Portal (COP) offers business customers a modern, streamlined way to create and manage a USPS business account set-up and onboard core services.

User Guides
03/11/2026
Business Portal User Account Creation

Instructions for new USPS Business Customers to generate a new account.

User Guides
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.

User Guides
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.

User Guides
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.

User Guides
11/25/2025
Quick Reference Guide: Bundle Preparation and Handling Recommendations

A guide to ensuring your bundles stay secure during transit.

User Guides
10/27/2025
Service Standards File Layouts/Release Notes

The Postal Service is making service standard changes to support Delivering for America network changes. We continue to provide service standard data files for customer use to determine the number of days in transit. This tech sheet will provide file layouts to help customers understand ongoing and upcoming changes associated with the proposed changes. Along with file layout changes, we are now incorporating Presort First-Class Service Standards.

User Guides
09/25/2025
Package Tracking Options and Modernization

Explore package tracking options with our Product Tracking and Reporting (PTR) application and learn about the planned changes in our recent platform modernization efforts.

User Guides
09/15/2025
Enterprise Post Office Box Online (ePOBOL) User Guide

The U.S. Postal Service is upgrading its payment architecture for enterprise and business customers. The new Enterprise Payment System (EPS) will replace the current product-centric payment with a centralized account management system enabling customers to pay and manage their services online using a single account. With the current implementation of EPS, business customers will be able to manage their PO Boxes, Caller Services and Reserves online using the new Enterprise PO Boxes Online (ePOBOL) service.

·         Open, close, and pay for PO Boxes, Caller Services, and Reserves online

·         Automatic Renewals

·         Account notifications and alerts

·         View account payments, balances, and transaction history

·         Customized payment reporting and dashboard capabilities

·         To get started, please contact MSSC@usps.gov.

User Guides
08/26/2025
Domestic Merchant Returns API: User Guide

This user guide provides examples of XML transactions to the USPS Merchant Returns web service and guidance for installation.