Deadline for DUNs

Stay updated about the transition from DUNS to SAM's Unique Entity ID (UEI) in the U.S federal government system, effective from April 4, 2022.

Title: Deadline for DUNs

The transition from Dun & Bradstreet's Data Universal Numbering System (DUNS) to the SAM-issued Unique Entity ID (UEI) marks a substantial shift in how entities are uniquely identified within the U.S. federal government system. This significant transition, set to be finalized by April 4, 2022, carries implications for all entities engaged in business activities with the federal government. Let's dive deeper into the specifics of this change:

What is the Unique Entity ID?

Impact of the Change

Obtaining the Unique Entity ID After April 4th

The Reason behind Replacing the DUNS Number

The decision to switch to a SAM-issued UEI lifts the dependency on a third-party (Dun & Bradstreet) for entity identification. This change forms part of an effort to streamline the registration process, empowering entities to perform all necessary steps within the SAM system without the need to visit other websites. It also offers the government added flexibility in managing the UEI system going forward.


Pedro has extensive background as a Contracting Officer and Contract Specialist, has worked across seven federal agencies, managing contracts totaling over $1 billion in the professional and tech sectors. His notable tenure includes serving with the DoD/DARPA during the inception of their robotics program. Additionally, he played a pivotal role in initiating the Cyber Special Item Number (SIN) within the GSA's IT Schedule 70 as a Team Lead. After graduating from Harvard, he started Blackfyre to help you win your next contract.

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