Transition from DUNS Number
Before the end of 2020, organizations doing business with the government—from vendors to grantees—will have a new unique number by which they will be identified, ending use of a configuration in place for nearly 60 years.
With such a significant shift affecting so many, there are many questions still left to be answered. After an information session held in late July, the General Services Administration, which manages the entity verification system, collected and answered 105 of those questions.
Some more at https://www.nextgov.com/it-modernization/2019/09/gsa-answers-105-questions-about-transition-duns-unique-ids/159866/