Effective February 28, 2022, the National Science Foundation (NSF) began using the new System for Award Management (SAM) issued Unique Entity Identifier (UEI) in Research.gov and FastLane. This update was made in accordance with the government-wide transition by April 4, 2022, away from the use of the Dun & Bradstreet issued Data Universal Numbering System (DUNS) number and toward the new SAM UEI as the primary means of entity identification for Federal awards.