The O-1A judging criterion is about being asked to evaluate the work of other professionals in your field or an allied field. USCIS treats this as a strong signal of authority because people are usually selected to judge only when their expertise is already respected.
Good examples include serving on competition panels, peer review boards, grant review committees, academic review panels, juries, pitch competitions, festival selection committees, and other structured evaluation roles. The key point is that you were trusted to assess the work of others, not just attend an event.
Strong evidence usually includes invitation emails, panel announcements, screenshots of public listings, event programs, review board letters, judging guidelines, and proof that the event or organization itself is credible. If the opportunity was selective, explain that too.
Common mistakes include relying on internal workplace reviews, informal mentoring, or feedback given to junior colleagues without any independent selection process. USCIS is more persuaded by documented, external judging roles tied to a recognized program or organization.
This criterion often pairs well with distinguished organizations, association memberships, and published material. Together, those categories show that the field not only knows your work, but relies on your expertise.
If you have not judged yet, it may still be possible to create a roadmap before filing. For many clients, this is a buildable criterion. Review the full criteria breakdown and use the evaluation page to see which categories are strongest right now.