What is the Unique Entity Identifier (UEI)?

This post is part of our “What Is…?” explainer series, which also covers topics like block grants and budget narratives.

The Unique Entity Identifier, or the UEI, is the official name of the “new, non-proprietary identifier” that will replace the D-U-N-S® number beginning in December 2020, according to the General Services Administration (GSA). The UEI will be requested in, and assigned by, the System for Award Management (SAM.gov).

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How will the UEI be used by Federal Grant applicants?

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