Data Files
03/31/2022
CASS™ Cycle O - Stage I File

This file only contains CASS™ Cycle O enhancements.

User Guides
03/29/2022
USPS Package Intercept® Bulk Upload User Guide

You can use the United States Postal Service’s (USPS’s) Package Intercept Commercial Service application to intercept a package through the Business Customer Gateway at USPS.com. Using this application will give you the option to return to sender, redirect to a new domestic address, or Hold for Pickup at a domestic Post Office. You can also add certain extra services to the package.
This publication is a user’s guide for the USPS Package Intercept Commercial Service application’s Bulk File Upload feature.