Scientist in cell biology claimed extraordinary ability through professional awards and membership in scientific societies. AAO found petitioner did not establish sustained national or international acclaim at the top level, as awards were not nationally recognized and memberships did not require outstanding achievement.

A researcher in molecular biology claimed extraordinary ability. AAO affirmed that petitioner met judging and scholarly articles criteria but failed original contributions. With only two of three required criteria met, the petition was dismissed. Petitioner did not demonstrate sustained national or international acclaim or placement at very top of field.

A postdoctoral researcher in civil engineering met three evidentiary criteria but failed the final merits determination. The AAO found his peer review service, citations, and scholarly articles reflected expertise but not sustained national or international acclaim required for extraordinary ability classification. The record did not demonstrate he reached the very top percentage of the field.

A materials science researcher sought EB-1A extraordinary ability classification. AAO agreed three criteria were met: judging, original contributions, and scholarly articles. However, final merits analysis found citation evidence lacking and peer reviewer role insufficient to establish sustained national acclaim or ranking among very top researchers. Appeal dismissed.