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Standing Committee

U.S. National Committee for the International Union of Radio Science (USNC-URSI)

The National Academy of Sciences withdrew as the U.S. adhering member of the International Union of Radio Science (URSI), effective February 18, 2026, and no longer serves as the U.S. adhering body to the Union. As a result, U.S. National Committee for the International Union of Radio Science (USNC/URSI) has been dissolved. This page is retained for historical purposes and reflects the National Academy of Sciences’ former relationship with the International Union of Radio Science.

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