Unique Entity Identifier, Login.gov, and SAM.gov

Published May 25, 2021

The purpose of this announcement is to share information with the Washington University community regarding the Unique Entity Identifier, Login.gov and SAM.gov.​

Unique Entity Identifier (UEI)

  • From May 24, 2021, through April 2022, federal agencies are transitioning from the DUNS number to Unique Entity Identifier (UEI) to uniquely identify institutions.
  • Washington University’s UEI is L6NFUM28LQM5.
  • Grants.gov forms and Funding Opportunity Announcements (FOAs) are being updated to accommodate the UEI.
  • FOAs that require the UEI cannot be submitted via RMS/S2S yet. RMS is expected to be updated with the UEI for S2S submissions in June – July 2021.
  • NIH and NSF have indicated they anticipate transitioning to using the UEI in January 2022.
  • More than two dozen opportunities currently posted at Grants.gov by various agencies with deadlines as soon as this week require UEI forms and data.
  • Please double check your FOA for RMS/S2S applications to see if the UEI is a required field. If the FOA requires the UEI, they cannot be submitted S2S. They will need to be submitted via Workspace.



  • SAM.gov is the System for Award Management.
  • All institutions who apply for and/or receive federal grants and contracts must be registered in SAM.gov.
  • The SAM.gov site was updated on May 24, 2021, and assigned Unique Entity Identifiers (UEIs) to all entities with a SAM.gov registration.
  • Washington University is registered in SAM.gov, and our UEI is L6NFUM28LQM5.
  • Any individual can view entity registrations (e.g. Harvard’s entity information), but you have to log in with a login.gov user name and password.
  • Debarment (exclusion) checking can be done without having to log in.

Please share this information with other individuals as you deem appropriate.

If you have any questions, please contact Teri Medley at medleyt@wustl.edu in the Office of Sponsored Research Services.