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U.S. National Committee for Crystallography (USNC/Cr)

The National Academy of Sciences withdrew as the U.S. adhering member of the International Union for Crystallography (IUCr), effective January 1, 2026, and no longer serves as the U.S. adhering body to the Union. As a result, the U.S. National Committee for Crystallography (USNC/Cr) has been dissolved. This page is retained for historical purposes and reflects the National Academy of Sciences’ former relationship with the International Union for Crystallography.

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Statement of Task

The U.S. National Committee for Crystallography (USNC/Cr) represents U.S. crystallographers in the International Union of Crystallography (IUCr) through The National Academy of Sciences. The IUCr strives to promote international cooperation and publication in crystallography, to facilitate standardization of methods, units, nomenclatures and symbols, and to form a focus for the relations of crystallography to other sciences.

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Contributors

Committee

Chair

Vice Chair

Secretary/Treasurer

Member

Member

Member

Member

Member

Member

Member

Member

Member

Member

Member

Member

Ex Officio Member

Ex Officio Member

Ex Officio Member

Ex Officio Member

Ex Officio Member

Ex Officio Member

Ex Officio Member

Ex Officio Member

Ex Officio Member

Ex Officio Member

Ex Officio Member

Ourania Kosti

Staff Officer

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Staff

Ourania Kosti

Lead

Diamond de Guzman

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