Petroleum engineer claiming extraordinary ability as deepwater well specialist. Petitioner claimed awards and association membership. AAO found internal company recognition insufficient and membership requirement not met. Final merits determination found achievements did not demonstrate sustained acclaim at top of field.

Investment firm petitions for O-1A classification for external managers evaluation specialist. Petitioner failed to submit required advisory opinion and satisfied only two of eight evidentiary criteria. Missing published material documentation and failing to establish three alternate criteria, petition dismissed.

Visual effects professional claimed extraordinary ability through multiple regulatory criteria and comparable evidence. AAO affirmed dismissal because petitioner failed to meet the high burden of demonstrating sustained national or international acclaim and belonging among the very top of the field, despite meeting high salary criterion.

Company president and scientific instrumentation developer demonstrated extraordinary ability through peer review work, scholarly articles, leading roles with distinguished company, and original marine geology contributions. AAO sustained appeal finding sustained acclaim at very top of field.