The UEI functions as the primary identifier across all federal platforms including SAM.gov, Grants.gov, and FPDS. After replacing DUNS numbers in April 2022, the UEI streamlines entity verification through automatic generation and standardized tracking. Organizations maintain their UEI through annual SAM.gov renewals, which then propagates to connected systems. This integration guarantees consistent entity identification, simplifies compliance requirements, and reduces administrative overhead throughout the federal procurement ecosystem. Further exploration reveals practical implementation strategies for organizations.
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ToggleThe UEI Implementation Process and Timeline

The Unique Entity Identifier (UEI) represents a significant change in how organizations interact with the federal government’s procurement and grant systems.
Following an Office of Management and Budget (OMB) directive, federal agencies completed the SAM.gov shift to UEI by April 4, 2022, marking the end of the DUNS number era.
Organizations faced various UEI registration challenges during implementation, including documentation requirements and system adjustments.
The process typically required 1-4 days for completion, with existing SAM.gov registrants receiving automatic UEI assignments. New registrants now obtain their UEI during the standard registration process.
All entities seeking federal assistance must ensure they have both a 12-digit UEI and complete registration at SAM.gov to be eligible for transactions.
This transition was designed to improve data accuracy and enhance the overall efficiency of the federal procurement system.
Post-change, entities must maintain active SAM.gov registrations with annual renewals to preserve their UEI status for conducting business with federal agencies.
Navigating UEI Integration Across Government Platforms

Spanning multiple federal platforms, the Unique Entity Identifier (UEI) now serves as the standard identification system for organizations conducting business with the U.S. government. The UEI replaced DUNS numbers on April 4, 2022, requiring adaptation across SAM.gov, FPDS, eSRS, FSRS, CPARS, and FAPIIS.
Despite its streamlined purpose, some entities encounter UEI registration challenges when transferring between systems. Cross-platform discrepancies occasionally arise when information doesn’t sync properly between SAM.gov and other portals.
To alleviate these issues, organizations should:
- Maintain current SAM.gov registrations
- Verify UEI linkage to correct organizational profiles
- Update contact information regularly
- Use SAM.gov as the authoritative source for UEI validation
This interoperability guarantees consistent tracking of federal awards and performance across all government systems. Understanding the transition process differences between new entities acquiring UEIs directly through SAM.gov and existing entities moving from DUNS numbers can help organizations better navigate potential cross-platform implementation issues.
Practical Benefits of the UEI System for Organizations

Numerous practical advantages emerge for organizations adopting the Unique Entity Identifier (UEI) system, creating tangible improvements in their government interactions.
The streamlined registration process generates significant cost savings by reducing administrative overhead and paperwork previously required under the DUNS system.
Organizations experience enhanced operational efficiency through simplified verification processes and uniform identification across all federal platforms. The automatic generation of UEI through SAM.gov eliminates delays and reduces potential errors in entity records. This standardization facilitates more effective data management and reporting capabilities. Organizations can now request and receive their nine-digit identifier directly through SAM.gov without involving third-party services. The UEI serves as a critical component for businesses looking to participate in the federal government procurement process.
The UEI system also provides competitive advantages by simplifying collaboration with international partners and enhancing company credibility as potential vendors.
As organizations integrate this identifier throughout their operations, they benefit from increased data integrity and compliance with federal mandates regarding entity verification.
Frequently Asked Questions
Can I Transfer My UEI if My Organization Merges With Another?
UEIs are non-transferable during organizational mergers. Merger implications include the requirement to obtain a new UEI for the resulting entity. Organizations must complete novation processes to guarantee UEI continuity for existing federal contracts.
What Happens to My UEI if I Change My Organization’s Name?
The UEI remains unchanged during organizational name changes. The entity must update its SAM.gov registration to reflect the new name. After validation, the name change implications flow automatically to connected systems without requiring a reapplication process.
Is the UEI Visible to the Public on Government Portals?
UEI information is publicly visible on SAM.gov for government transparency unless entities opt out. When opted out, UEI visibility is restricted to federal users only, while maintaining necessary identification for tracking and awards.
Can One Organization Have Multiple UEIS for Different Departments?
No, organizations cannot have multiple UEIs for different departments. Federal guidelines specify one UEI per legal entity regardless of size. SAM.gov prohibits multiple registrations, and the system does not support departmental identifiers within organizations.
How Do International Organizations Obtain a UEI for U.S. Grant Applications?
International organizations obtain UEIs by first acquiring an NCAGE code, then completing SAM.gov registration. This process is mandatory for grant eligibility, regardless of organization size. International registration is free but requires detailed documentation.