What is the Unique Entity Identifier (UEI), and how is it related to the System for Award Management (SAM)?

Effective April 4, 2022, the Federal Government transitioned from using the Data Universal Numbering System (DUNS) number, to a new, non-proprietary identifier known as a Unique Entity Identifier or UEI. For entities that had an active registration in SAM.gov prior to April 4, 2022, the UEI has automatically been assigned and no action is necessary.

For all entities now filing a new registration in SAM.gov, the UEI will be assigned to that entity as part of the SAM.gov registration process. UEI registration information is available on GSA.gov at: Unique Entity Identifier Update | GSA.

Applicant registration in SAM is free. All applicants must be registered and active in order to apply online. Please remember that SAM registration is only active for one year and must be renewed annually.

Existing SAM.gov account holders should check their account to make sure it is active.

An applicant’s SAM registration must be active not only at the time of application, but also during the application review and awarding process, as well as throughout the entire award management phase.