Does reviewing papers for a conference count as judging for the O-1A?

If you review for machine learning, systems, vision, language or any other field where conferences are the main venue for new work, you have probably wondered whether those reviews count for the O-1A. They usually do. The harder question is how much they count, which depends on whether the venue required you to review, whether you were selected for a senior role, and how well the record is documented.

This guide is for researchers, engineers and founders who review for conferences and want to know how USCIS will read that work. It covers the regulation, current USCIS guidance, reviewing data from major venues and a documentation checklist. Figures checked October 2026.

Yes: conference paper review fits the judging criterion

Conference paper review meets the plain terms of the O-1A judging criterion. The regulation at 8 CFR 214.2(o)(3)(iii)(B)(4) asks for evidence of the beneficiary’s participation on a panel, or individually, as a judge of the work of others in the same or in an allied field of specialization. A reviewer assigned to a conference submission reads another researcher’s work, scores it and recommends acceptance or rejection. That is individual judging of others’ work in your field.

Nothing in the regulation limits the criterion to journals, and nothing requires a panel. A single reviewer acting alone qualifies, which is why the text says "or individually". The format of the venue, conference or journal, does not change the analysis at the first step.

The criterion also sits inside a larger test. The O-1A requires either a major internationally recognized award or evidence meeting at least three of the eight criteria, and the USCIS Policy Manual is explicit that providing required evidence does not, in itself, establish eligibility. An officer first counts criteria, then evaluates the totality of the record for sustained national or international acclaim. We explain that second step in the Kazarian two-step, in plain language, and walk through all eight criteria in our guide to O-1 visa requirements.

What USCIS requires: an invitation and a completed review

USCIS wants two things: proof you were asked to judge, and proof you actually did it. The clearest statement is in the USCIS Policy Manual chapter on the EB-1A, which uses the same judging criterion. It says the petitioner must show the person was not only invited to judge the work of others but also actually participated, and gives peer review as the example: a copy of the request to review, accompanied by evidence confirming the review was completed.

The O-1A chapter quotes the regulatory text without restating that two-part test, but the regulation’s own word is participation, and the O-1A uses the same two-step structure: the officer first determines whether the minimum number of criteria is met, then weighs all the evidence together. Documenting both the invitation and the completed review is the safe reading for either category.

The same EB-1A guidance adds an important line for weighing: participating in judging alone, regardless of the circumstances, should satisfy the criterion at the first step. The circumstances, such as how you were chosen and how selective the venue is, matter at the final merits stage.

Did the January 2025 update change anything?

USCIS updated its O-1 guidance on January 8, 2025 (PA-2025-02), revising the supporting documentation section for the O-1A throughout and adding examples of evidence for critical and emerging technologies. It did not add a minimum number of reviews, and the judging criterion itself still reads as the regulation does.

Demand for the category is rising, which makes clear evidence more valuable. USCIS data show 7,710 O-1A petitions in FY 2021 and 10,010 in FY 2023, a 29.8% increase, while approvals rose from 7,320 to 9,490.

STEM approvals rose from 3,550 to 4,560 over the same period, about 48% of O-1A approvals in both years, so a large share of O-1A applicants come from fields where conference reviewing is routine.

Conference reviewer, program committee or area chair: how the roles compare

Every role in the table below can meet the criterion at the first step, but the weight each carries at the final merits stage differs sharply.

Conference reviewing and journal reviewing are equal at the first step. At the final merits stage, an officer asks what the role says about your standing, so a role you were selected for usually carries more weight than one that was open to anyone who submitted a paper. That is where senior roles stand out.

Federal grant review shows the same pattern. In FY 2024, the National Science Foundation evaluated 40,454 competitive proposals using 187,829 proposal reviews, about 4.6 reviews per proposal, drawing on almost 32,000 panelists and reviewers, with a 26% funding rate. Grant panelists are invited by program officers, so panel service comes with a selection story.

Does it still count if the conference required you to review?

Yes, a required review still counts at the first step, but it carries less weight at the final merits stage because no one selected you. This matters because the largest conferences in computer science now require authors to review.

The table below shows the reviewing obligations at three large venues.

Scale tells the rest of the story. The NeurIPS 2025 main track received 21,575 valid submissions and accepted 5,290, a 24.52% acceptance rate. To review them, it relied on 20,518 reviewers, 1,663 area chairs and 199 senior area chairs.

Area chairs and senior area chairs made up 8.3% of the main-track program committee. Put plainly, more than 20,000 people reviewed, and 1,862 were chosen as area chairs or senior area chairs to manage reviewers and write meta-reviews.

A review you were required to write proves participation. A role you were selected for proves standing. At NeurIPS 2025, 20,518 people reviewed, and 1,862 were chosen to lead.

Reciprocal reviews still meet the criterion, and a long record at top venues shows sustained engagement. Present them honestly and pair them with evidence of selection, such as invited journal reviewing or a program committee appointment.

How many conference reviews are enough?

There is no number. Neither 8 CFR 214.2(o) nor the USCIS Policy Manual sets a minimum, and the EB-1A guidance says judging alone, regardless of circumstances, should satisfy the criterion at the first step. A single, well documented review can technically meet it.

The final merits stage is different. An officer looking for sustained acclaim reads a pattern: reviews across several years, at venues with documented selectivity, with progression toward senior roles. A handful of reviews from one year at one venue proves the criterion but says little about standing. A multi-year record that moves from reviewer to program committee to area chair tells a stronger story than a larger count of one-off reviews.

Illustrative profile

Illustrative profile: a machine learning engineer at a startup has reviewed for two major conferences over three years, partly under reciprocal policies, has reviewed by invitation for one journal, and served on a workshop program committee. The petition presents the journal invitations and the program committee appointment first, as evidence of selection. The conference reviews follow, with assignment records and a short explanation of each venue’s scale and acceptance rate. The reciprocal context is disclosed, and the narrative shows growing responsibility.

How to document conference reviews, step by step

Good documentation proves the invitation, the completed work and the standing of the venue. Build it in this order.

1. Collect the invitations. Save every invitation email from program chairs, area chairs or editors, with the date, venue and your name visible.
2. Capture the assignment records. Screenshot the reviewer console in the submission system showing your assigned papers, with titles redacted where confidentiality requires.
3. Prove completion. Keep confirmation emails, thank-you letters from chairs, reviewer certificates or a chair letter stating how many reviews you completed and when.
4. Show the venue’s standing. Add the venue’s published submission count, acceptance rate and program committee size, from official chair reports.
5. Capture public listings. Many venues publish their committees; ICML, for example, publishes its 2025 program committee by name, including reviewers and meta-reviewers.
6. Explain sub-reviews. For reviews delegated by an advisor, get a signed letter from the invited reviewer naming the papers you reviewed, plus any system record listing you as a sub-reviewer.
7. Organize by year and role. Present the record as a timeline so progression is visible at a glance.

The table below maps each document to what it proves.

Double-blind venues

Double-blind review hides your identity from authors, not from the venue. Assignment emails, console records and chair confirmations all name you, so anonymity is rarely a barrier. Redact paper titles and author details where the venue’s confidentiality rules require it, and say so in the petition.

Timing and fees

Only reviews completed before filing count, because eligibility is judged as of the filing date. If the rest of the record is ready, premium processing costs $2,965 since March 1, 2026, up from $2,805, and USCIS must act within 15 business days. Our how it works page shows where evidence gathering fits in the full timeline.

How the same reviews work for the O-1A and the EB-1A

Conference reviews serve both categories, and the judging criterion works the same way in each. What differs is the number of criteria, who files and what the approval gives you.

Organizing your reviewing record well for an O-1A petition builds the foundation for a later EB-1A green card.

How it changes by field

Researchers and scientists

For academic researchers, conference and journal reviewing are often the easiest criterion to document, and that is exactly why it rarely carries a case alone. Pair it with scholarly authorship and original contributions. Note that the EB-1A guidance recognizes some peer-reviewed conference proceedings as scholarly articles, so your own accepted papers may support a second criterion. Our page for researchers and scientists covers how these pieces fit together.

Engineers and tech professionals

Engineers in industry often review for top machine learning and systems conferences, frequently under reciprocal policies. Lead with any selected roles, such as program committee or area chair service, and add venue data from chair reports. See our page for engineers and tech professionals.

Founders and startup executives

Founders tend to meet this criterion through judging pitch competitions, accelerator applications or hackathons rather than paper review. The same rules apply: prove the invitation, prove you judged, and show the event’s standing. Our page for founders and startup executives covers common evidence patterns.

Artists and creatives

The O-1B criteria for the arts do not include a judging criterion, so reviewing work in the arts is presented as part of the overall record of distinction rather than as a standalone criterion. See our page for artists and creatives.

Common mistakes with conference reviewing evidence

• Submitting invitations without proof of completion. USCIS guidance requires evidence the review was completed, and an invitation you declined does not count.
• Leading with volume. A long list of reciprocal reviews without context invites the reading that the role was routine. At NeurIPS 2025 alone there were 20,518 reviewers.
• Ignoring venue data. An officer outside your field will not know a conference’s reputation. Official submission and acceptance figures do that work.
• Undocumented sub-reviews. A review delegated by an advisor needs a letter and records naming you; otherwise the evidence shows someone else judged.
• Citing reviews completed after filing. They cannot support eligibility on that petition.

If your judging evidence is thin, our profile building work can help you document what you already do, and expert letters can explain a venue’s standing; see evidence and expert letters.

Frequently asked questions

Does reviewing for a conference workshop count as judging?

Yes. Workshop reviewing is judging the work of others in your field, so it can meet the criterion at the first step if you document the invitation and the completed review. Workshops are usually smaller and less selective than main tracks, so they tend to carry less weight in the final merits review. Organizing a workshop and running its review process can carry more.

Does an invitation to review count if I declined it?

No. The criterion asks for participation as a judge, and USCIS guidance requires evidence that the person actually completed the review. An unanswered or declined invitation shows that others value your expertise, which may help the overall picture slightly, but it does not satisfy the judging criterion on its own.

Can reviews I complete after filing help my petition?

Not for that petition. Eligibility is assessed as of the filing date, so reviews completed afterward cannot fix a gap in the original filing. They can, however, support a later extension, a new petition or a future green card case, so it is worth documenting them as you go.

Does giving feedback on a colleague’s draft count?

Generally no. Informal feedback lacks a formal judging role, an invitation from a venue or organization, and a decision that depends on your evaluation. The criterion is built around structured roles such as peer reviewer, panelist, committee member or competition judge, where your assessment feeds into an outcome.

Does judging a hackathon or pitch competition count the same way?

It can. The criterion covers judging the work of others in the same or an allied field, individually or on a panel. The same proof applies: the invitation, evidence you judged, and information on the event’s standing, such as organizers, number of entrants and how judges were chosen.

Will my conference reviews also work for an EB-1A?

Yes. The EB-1A has a matching judging criterion, and the USCIS guidance on proving an invitation and a completed review comes from the EB-1A chapter itself. The EB-1A requires 3 of 10 criteria and leads to permanent residence, so selected roles and venue standing deserve the same careful documentation.

Talking it through

A consultation is the quickest way to see how your reviewing record will read to an officer. We look at each venue and role, separate selected roles from required ones, check what documentation you already have and identify what to request from chairs or editors before filing.

When the record is ready, we prepare the full petition, and it is reviewed, signed and filed by an independent licensed immigration attorney. To start, book a consultation.

Sources

1. USCIS Policy Manual, Volume 2, Part M, Chapter 4, Extraordinary Ability (checked October 2026)
2. USCIS Policy Manual, Volume 6, Part F, Chapter 2, Extraordinary Ability (checked October 2026)
3. USCIS, Policy Alert PA-2025-02, Evidentiary Requirements for O-1 Nonimmigrants (January 8, 2025)
4. eCFR, 8 CFR 214.2(o), Aliens of extraordinary ability or achievement
5. 8 CFR 106.4, Premium processing timeframes (Legal Information Institute)
6. Federal Register, Adjustment to Premium Processing Fees, 91 FR 1059 (January 12, 2026)
7. American Immigration Council, STEM-Related Petitions Increase Following USCIS’ Updated Policy Guidance (March 2024), analyzing USCIS FY 2018 to FY 2023 data
8. National Science Foundation, FY 2024 Agency Financial Report
9. NeurIPS, Reflections on the 2025 Review Process from the Program Committee Chairs (September 2025)
10. NeurIPS, Responsible Reviewing Initiative for NeurIPS 2025 (May 2025)
11. CVPR 2025, Changes to the Review Process
12. ACL Rolling Review, Reviewing Workload Requirement (April 2024)
13. ICML 2025, Program Committee