How to know if a Record is not a Business

This document provides a quick service guide to know if a record is not a business.

How to know if a Record is not a Business

This document provides a quick service guide to know if a record is not a business.

DSF2® Licensees

This document contains a list of DSF2® licensed providers with contact information.

DSF2® Licensees

This document contains a list of DSF2® licensed providers with contact information.

Licensing Fees

This document contains information about licensing fees for USPS® Licensed Products.

Licensing Fees

This document contains information about licensing fees for USPS® Licensed Products.

DSF2® License Agreement

This document provides a license agreement for DSF2®.

DSF2® License Agreement

This document provides a license agreement for DSF2®.

DSF2® Licensee Performance Requirements - CASS Cycle O

To achieve DSF2® certification, the Licensee must comply with all requirements and specifications contained within the License Agreement, the most current version of this document, and the most current version of the Interface Developers Guide unless explicitly allowed, prohibited, or modified by USPS in writing.

DSF2® Licensee Performance Requirements - CASS Cycle O

To achieve DSF2® certification, the Licensee must comply with all requirements and specifications contained within the License Agreement, the most current version of this document, and the most current version of the Interface Developers Guide unless explicitly allowed, prohibited, or modified by USPS in writing.

DSF2® Licensees Cycle N: Certified Products Guide - (Expires July 31, 2023)

This document contains the CASS™/MASS™ certified vendors list for DSF2® Licensees for Cycle N.

Electronic Product Fulfillment (EPF) Web Access Request Form (PS 5116)

This form is used to create a Web-based account with the Addressing and Geospatial Technology (AGT) office which will be utilized to retrieve/download files from the Electronic Product Fulfillment (EPF) website.

DSF2® Licensee Performance Requirements

To achieve DSF2 certification, the Licensee must comply with all requirements and specifications contained within the License Agreement, the most current version of this document, and the most current version of the Interface Developers Guide unless explicitly allowed, prohibited, or modified by USPS in writing.

DSF2® Licensee Performance Requirements

To achieve DSF2 certification, the Licensee must comply with all requirements and specifications contained within the License Agreement, the most current version of this document, and the most current version of the Interface Developers Guide unless explicitly allowed, prohibited, or modified by USPS in writing.

Reminder on SHA-256 Conversion

Licensing Announcement: Reminder on SHA-256 Conversion

As a reminder, the USPS has begun the conversion of its licensed products from SHA‐1 to SHA‐256. This conversion is based on an OIG (Office of Inspector General) recommendation to transition USPS Licensed Products to a more secure algorithm to comply with current USPS security policies.

DPV®, DSF2®, CASS™ Grading Requirements

This document contains grading requirements for DPV®, DSF2®, and CASS™ products.