DSF2® is an approved method outlined in the Domestic Mail Manual for sequencing mail pieces in walk-sequence when not using a simplified address.
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Who is DSF2® for?
To become a DSF2® Licensed Service Provider, applicant must be in the business of, or planning to be in the business of, providing address verification and list processing services.
First Class Mail
What is DSF2®?
The DSF2® Product identifies whether a ZIP + 4® coded address is currently represented in the USPS® delivery file as a known address record. The DSF2® Product contains vacant, residential, business or seasonal address information. It also identifies if an address is delivered to a curb-side mailbox or by a door-slot. This information will allow for more targeted mailings. DSF2® processing is one of the approved methods outlined in the Domestic Mail Manual for sequencing mail pieces in walk-sequence when not using a simplified address.
What documentation do I need for DSF2®?
Once you have decided to apply to become a DSF2®, the next step is to complete the certification process. The process includes the completion of the following documentation:
- Confidentiality Statement
- Self-Certification Survey
- Key Personnel Listing
- Security Documentation
- Technical Proposal
- Licensee Survey
- Equipment Information
Upon completion of these documents, the license must be executed, including the payment of the appropriate licensing fees.
The annual license fee for DSF2 is $114,000.00.
This document contains an application form, Licensing and Certification Key Personnel Form, for Delivery Sequence File Second Generation (DSF2®).
This document provides a license agreement for DSF2®.
This document contains a list of DSF2® licensed providers with contact information.
Advertising technical guide for licensed products.
This document provides a technical guide for DSF2® interface developers.
This document contains a technical guide for DSF2® flat file interface developers.
This document provides facts and additional information on Public Seed records.
This document contains a throwback table for DSF2®.
The following material describes the necessary steps of the certification process to qualify for a license to the DSF2 Licensed Service.
This document provides a quick service guide to know if a record is not a business.
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.
New DSF2 Educational/Seasonal Indicator.
This document contains information about licensing fees for USPS® Licensed Products.
The DPV® Product identifies whether a ZIP + 4® coded address is currently represented in the USPS® delivery file as a known address record. It also allows users to confirm known USPS addresses, as well as, identify potential addressing issues that may hinder delivery.
For more information on the DSF2® licensing and certification process, please contact the Move Update Support Department at 1-800-589-5766.