The Unique Entity ID (UEI) replaced the DUNS number system for federal contracting and grants on April 4, 2022. While DUNS used a nine-digit format managed by Dun & Bradstreet, UEI employs a twelve-character alphanumeric code assigned directly through SAM.gov. The new system eliminates third-party registration costs, requires annual renewals, and centralizes entity management under government control. Understanding these key differences helps organizations navigate federal award processes effectively.
Understanding DUNS to UEI Transition and Key Differences
The shift from DUNS (Data Universal Numbering System) to Unique Entity ID (UEI) marks a considerable change in federal grant management and contractor identification systems. While DUNS utilized a nine-digit numeric format issued by Dun & Bradstreet, UEI employs a twelve-character alphanumeric code assigned directly by the U.S. government through SAM.gov, representing a fundamental shift in identifier management.
The change, completed on April 4, 2022, streamlined the process for entities seeking federal awards. Organizations previously registered in SAM.gov received their UEI automatically, eliminating the need for separate registration with a third-party provider. Most contractors found the transition seamless as no immediate action was required. This change affected all systems within the Integrated Award Environment, including FPDS and other federal platforms, where DUNS numbers are no longer accepted.
Federal systems now exclusively use UEI identifiers, marking a complete transition from DUNS numbers in SAM.gov and related platforms.
Administrative responsibilities have changed considerably under the UEI system. Organizations must now complete annual SAM.gov registration renewals, whereas DUNS renewal was optional. The new system provides enhanced data accuracy through centralized management of entity information. Updates to entity information require direct interaction with the Federal Service Desk through SAM.gov, rather than working through Dun & Bradstreet. Organizations must provide detailed documentation, including physical address and incorporation details, to obtain a UEI.
The compliance landscape has also evolved with UEI implementation. Federal contractors and grant recipients must maintain active UEI registration, including subrecipients who receive federal funds indirectly. The system allows for certain exemptions, such as individuals, while maintaining strict requirements for organizational entities seeking federal awards.
Technical implementation of the UEI system has enhanced accessibility and security. SAM.gov now incorporates integrated search functions and migration tools, enabling users to verify entity information efficiently. Non-public UEI data remains protected, accessible only through authorized user accounts, ensuring confidential information stays secure.
The impact on users has been remarkably positive, with the elimination of third-party registration requirements streamlining the process. The UEI system offers free identifier assignment, contrasting with the previous DUNS system. Organizations can now manage their identifiers directly through government systems, reducing complexity and improving efficiency in federal award management.
Despite the change to UEI for federal purposes, DUNS numbers retain relevance in non-federal contexts, such as Small Business Administration portals. Organizations may need to maintain both identifiers depending on their business activities, though federal systems exclusively require UEI for all new registrations and awards.
Frequently Asked Questions
How Long Does It Take to Get a Unique Entity ID?
For existing SAM.gov registrants, the Unique Entity ID (UEI) is instantly available as it’s automatically assigned during registration.
New entities requesting a UEI through SAM.gov typically receive it within 24-48 hours if their entity validation is successful. However, if additional documentation is required for entity validation, the process may take 7-10 business days.
The UEI remains permanent once assigned, regardless of registration status.
Can Foreign Entities Obtain a Unique Entity ID Through SAM.Gov?
Yes, foreign entities can obtain a Unique Entity ID through SAM.gov.
However, they must first secure an NCAGE code before initiating the SAM.gov registration process.
Foreign organizations can choose between two registration options: “Register for Federal Assistance Awards Only” or “Unique Entity ID Only.”
The latter option provides a streamlined process for entities that only need a UEI for sub-award reporting purposes.
What Happens if My Unique Entity ID Information Needs Updating?
When an entity’s information needs updating in SAM.gov, they must log into their SAM.gov account and initiate a registration update.
Changes to legal business name, physical address, or other core data require validation through SAM.gov’s identity verification process. The entity must complete all required fields and submit supporting documentation.
After submission, updates typically process within 3-5 business days, during which the existing UEI remains active.
Is There a Fee Associated With Obtaining a Unique Entity ID?
There is no fee associated with obtaining a Unique Entity ID (UEI) through SAM.gov.
Unlike the discontinued DUNS number system, which required payment to Dun & Bradstreet, the UEI is completely free for all entities.
Organizations can obtain their UEI directly through SAM.gov during registration or request a UEI-only designation without completing full SAM registration, all at no cost.
Do State and Local Governments Need a Unique Entity ID?
State and local governments require a Unique Entity ID when they participate in federal funding opportunities or contracts.
This requirement applies specifically when entities seek federal grants, serve as sub-awardees, or engage in federal contracts.
The ID is automatically assigned to previously registered entities, while new registrants must complete the process through SAM.gov.
For activities exclusively at state or local levels without federal involvement, a Unique Entity ID is not required.
