Researchers' Guide to the O-1A Visa (2026)

TL;DR

• The O-1A is a nonimmigrant visa for individuals with extraordinary ability in the sciences, education, business, or athletics. For researchers, it covers all scientific disciplines, academic fields, and applied research roles. It has no annual cap, no lottery, no degree requirement, and no prevailing wage obligation. Initial validity is three years with unlimited extensions.

• Researchers are among the most natural fit for the O-1A because academic careers already generate the objective, independently verifiable evidence the standard requires: peer-reviewed publications, citation records, peer review service, grants, and institutional recognition. The challenge is not whether the evidence exists but whether it has been assembled and presented in a way USCIS can evaluate.

• The three criteria most research-based O-1A cases are built around are: authorship of scholarly articles, original contributions of major significance to the field, and judging the work of others. These three work together naturally and are the core of most successful researcher petitions. Supporting criteria such as awards, critical role, and selective membership strengthen the overall record.

• USCIS applies the Kazarian two-step framework. At Step 1, USCIS evaluates whether evidence exists that at least three criteria are satisfied. At Step 2, USCIS evaluates the totality of evidence to determine whether it establishes sustained national or international acclaim at the very top of the field. Clearing Step 1 does not guarantee Step 2. The overall picture must be unambiguous, not merely technically sufficient.

• For academic researchers, the high salary criterion is structurally difficult because university salary scales are standardized and rarely reach the "significantly above peers" threshold. Industry researchers in pharmaceutical, biotechnology, and technology research typically have stronger salary-based evidence. This criterion is not the primary building block for most academic cases.

• Researchers on J-1 exchange visitor status may be subject to the two-year home residency requirement under INA 212(e). Importantly, the 212(e) restriction operates differently depending on the pathway pursued. A J-1 researcher subject to 212(e) can depart the United States, apply for an O-1A visa at a U.S. consulate abroad, and re-enter in O-1A status without needing to satisfy or waive the home residency requirement. Researchers facing this situation should discuss both pathways with immigration counsel early.

• The O-1A, EB-1A, and EB-2 NIW share significant evidence overlap for researchers. Building an O-1A case is, in practice, building toward both green card pathways simultaneously. Many researchers file for all three strategically: O-1A for immediate nonimmigrant authorization, EB-2 NIW I-140 to establish a priority date, and EB-1A I-140 when the profile is strong enough.

• Premium processing guarantees a USCIS response within 15 business days at $2,965 (effective March 1, 2026).

Why Researchers Are Well-Suited to the O-1A

The O-1A visa standard rewards objective, independently verifiable evidence of field-level distinction. Academic research careers produce exactly this kind of evidence as a matter of professional practice. Every peer-reviewed publication that gets cited creates independent third-party validation. Every peer review invitation creates documented evidence that journals trust the researcher's expert judgment. Every competitive grant generates evidence of external selection and recognition. Every invited lecture creates a record of the field seeking out the researcher's perspective.

This alignment between academic practice and immigration evidence is the core reason the O-1A works especially well for researchers. The evidence is not being manufactured for immigration purposes. It is being documented from an existing professional record. 

The challenge for most researchers is not the underlying achievements: it is recognizing which elements of their research careers are legally significant under the O-1A criteria, knowing how to document them in terms an immigration adjudicator can evaluate, and understanding what gaps to fill before filing.

The H-1B visa, by contrast, is structurally awkward for research careers. Prevailing wages for research roles at universities are often misaligned with actual academic compensation structures. The specialty occupation requirement creates friction for interdisciplinary researchers. And the lottery makes timing unpredictable in ways that are particularly disruptive for postdocs, visiting researchers, and those finishing doctorates. The O-1A resolves all of these constraints for researchers whose careers have reached a qualifying level of distinction.

Who Qualifies: The Researcher Persona Spectrum

The O-1A does not distinguish between academic and industry researchers or between early-career and senior researchers. 

The standard is the same: extraordinary ability demonstrated by sustained national or international acclaim. What differs by career stage is which criteria are available and how strongly they can be documented.

Postdoctoral researchers can qualify when they have a strong publication record in recognized journals, active peer review service, and at least one highly cited first-author contribution. The January 2025 USCIS policy update explicitly confirmed that recognition need not be at advanced career stages. Postdocs with the right evidence profile should not assume they need to wait for a faculty position.

Principal investigators and faculty researchers typically have stronger cases across more criteria: PI credit on funded grants, critical role at the university or research center, a richer peer review and editorial service record, and more years of citation accumulation. The critical role criterion is more accessible for PIs than for postdocs.

Industry researchers at pharmaceutical, biotech, and technology companies may have high salary evidence that academic researchers typically cannot access, alongside patents, product contributions, and forms of recognition specific to applied research. Their published material may include both journal articles and technical reports. The criteria apply the same way but the evidence takes different forms.

The Three Core Criteria for Researchers

Criterion 1: Authorship of Scholarly Articles

For researchers, this is typically the foundation of the O-1A case and the criterion where the most objective evidence exists. The regulatory language covers authorship of scholarly articles in professional journals, professional trade publications, or other major media in the field or fields of extraordinary ability.

The relevant evidence is not simply a list of publications. USCIS evaluates the substance of the publication record: the journals' standing in the field, the researcher's role in each paper, and the evidence that the articles have been engaged with by the broader research community.

Journal standing matters. USCIS has no fixed impact factor threshold, but adjudicators evaluate whether the publication venue is recognized as a significant outlet in the field. Publishing in Nature, Science, Cell, NEJM, JAMA, PNAS, or their field-specific equivalents is strong evidence of distinction. 

Publishing exclusively in proceedings of minor conferences or in journals with minimal standing in the field is weaker. The petition should contextualize each publication venue for an adjudicator who is a generalist: explain why this journal is considered prestigious in the field, what the acceptance rate is, and how widely it is read among leading researchers.

The author's position is relevant but not determinative. First authorship typically indicates the greatest intellectual contribution. Corresponding authorship indicates overall responsibility for the work. Senior authorship in many life science fields indicates laboratory leadership. USCIS adjudicators may not be familiar with field-specific authorship conventions, so the petition narrative should explain what the researcher's position in the author list reflects about their specific contribution to each paper.

Citation evidence is the most objective measure available of how the field engaged with the published work. Google Scholar, Web of Science, and Scopus each provide citation counts and h-index data. Total citation counts, h-index, and citations per paper provide useful benchmarks, but raw numbers without context are less useful than numbers compared to field norms. 

A researcher with 1,500 total citations in a field where a leading researcher typically accumulates 500 to 2,000 over a career is in a different position than one with 1,500 citations in a field where leading researchers accumulate 50,000.

Field-normalized citation metrics, available through Web of Science and some Scopus reports, compare the researcher's citation performance to the average for papers published in the same field, year, and document type. These normalized metrics speak directly to the extraordinary ability standard and are more useful for USCIS purposes than raw numbers alone.

Criterion 2: Original Contributions of Major Significance

This criterion requires not just that the researcher made original contributions, but that those contributions had major significance to the field. The significance must be evidenced by how others engaged with the work:

• Whether they built upon it

• Cited it in ways that indicate substantive intellectual engagement

• Adopted the methodology

• Replicated the findings

• Integrated the results into clinical or regulatory practice

• Demonstrated that the contribution moved the field in a meaningful way

For basic researchers: independent citations from other research groups, adoption of a novel methodology or analytic approach by other labs, identification as a foundational contribution in review articles or meta-analyses, and inclusion in textbooks or curricula.

For clinical researchers: adoption of findings in clinical guidelines, regulatory decisions informed by the research, changes to clinical practice documented in subsequent literature, and recognition in systematic reviews as a pivotal contribution.

For applied researchers: patents with documented commercial adoption, technologies that other groups licensed or built upon, documented impact on product development or industrial processes, and recognition in industry analysis as a significant technical advance.

The most persuasive evidence for this criterion is expert letters from researchers who specifically describe how they used or built upon the applicant's work in their own research. A letter that says "Dr. Chen's 2021 paper on protein folding mechanisms changed how our lab approaches computational drug design, and we have cited it in four subsequent publications because it provides the methodological framework we now use routinely" is more compelling than a letter that says "Dr. Chen is a distinguished scientist whose work is widely recognized in the field."

Criterion 3: Judging the Work of Others

Peer review for academic journals, grant review panels, and similar evaluation roles satisfy this criterion. For researchers, this is among the most accessible criteria and, like the CXO's judging activity, is one that many researchers have but have not documented comprehensively.

• Journal peer review: every invitation to review a manuscript for a recognized journal is evidence for this criterion. The documentation needed is the invitation email from the editor, confirmation that the review was submitted, and evidence of the journal’s standing. The Web of Science Researcher Profile (formerly Publons, merged into Web of Science in August 2022) provides an exportable record of peer review activity that USCIS accepts as credible documentation.

• Grant review panels: serving as a reviewer or panelist for NSF, NIH, DOE, foundations such as the Gates Foundation or Wellcome Trust, or international equivalents demonstrates that major funding agencies trust the researcher's expert judgment. The documentation is the invitation from the funding agency, which is typically on official letterhead and specifically selects reviewers based on expertise and standing.

• Editorial board membership: serving as an associate editor, guest editor, or editorial board member for a recognized journal is strong evidence for this criterion because it reflects a longer-term institutional recognition of the researcher's standing in the field. A single peer review invitation establishes that a journal recognized the researcher's expertise once. An editorial board appointment establishes ongoing recognition of their sustained standing.

• Dissertation and thesis committees: serving as an external reviewer or external committee member for doctoral students at other institutions demonstrates that universities outside the researcher's own institution recognize their standing sufficiently to trust their judgment in evaluating graduate research. This is a less commonly documented form of judging activity but is specifically recognized as qualifying.

The pattern of judging activity matters as well as the individual instances. A researcher who has reviewed for five or six recognized journals, served on two grant panels, and holds one editorial board position has a richer judging record than one who has done a single peer review for a top journal. The record should demonstrate sustained engagement as a trusted evaluator in the field.

Supporting Criteria for Researchers

Awards and Prizes for Excellence

For researchers, qualifying awards include: competitive government fellowships and early-career grants recognized as selective and prestigious (NSF CAREER, NIH K99/R00, NIH Early Investigator awards, ERC Starting or Consolidator Grants, Marie Skłodowska-Curie fellowships), best paper or best poster awards from recognized conferences with peer-evaluated selection processes, named lectureships or prize lectures from professional societies, and election to fellowship in distinguished professional societies (AAAS, IEEE Fellow, ACM Fellow, Royal Society Fellows, and comparable organizations).

The January 2025 USCIS policy update explicitly confirmed that awards need not be received at advanced career stages. A competitive graduate fellowship, a best dissertation award, or an early-career research prize from a recognized source all count. The selectivity of the award and the standing of the granting organization determine its weight more than the career stage at which it was received.

Competitive research grants themselves can serve as evidence of recognition under this criterion when the grant is from a prestigious source with a documented competitive selection process. An NIH R01 that went through full peer review and scored in the top 10 to 20 percentile of applications is evidence of competitive selection for a prestigious funding source. The documentation should establish the award amount, the funding agency, and the peer review selectivity.

Membership in Selective Associations

Fellowship in learned societies and professional organizations that require outstanding achievement as judged by recognized experts satisfies this criterion. For researchers, strong evidence includes election to fellowship in major professional societies (AAAS, IEEE, ACM, APS, ACS, ASM, and their international equivalents), membership in national academies (National Academy of Sciences, National Academy of Medicine, National Academy of Engineering), and election to honorary societies in the field.

The distinction between open professional memberships and selective fellowships matters. Anyone can pay dues to join most professional societies. Fellowship in those same societies, where election is based on peer nomination and a documented record of outstanding achievement, is a materially different credential. USCIS evaluates membership based on the admission requirements, not the name of the organization.

Critical Role at a Distinguished Organization

For research group leaders, department chairs, center directors, and PIs on major multi-institutional grants, the critical role criterion can be satisfied when the organization or research program is distinguished and the researcher's role in it is demonstrably central.

A PI leading a multi-institutional NIH center grant funded at $10 million over five years is in a critical role at a distinguished program. A department chair at a university with national ranking in the relevant field holds a critical position at a distinguished institution. A lead scientist at a national laboratory or a director of a named research center occupies a role whose criticality is reflected in the institutional structure itself.

For postdocs and junior researchers, this criterion is harder to satisfy because the institutional roles available at that career stage do not typically carry the centrality that qualifies. Postdocs who are central contributors to major projects can sometimes argue this criterion, but it requires careful construction of the evidence around their specific contributions rather than their title.

High Salary or Remuneration

This is the structurally weakest criterion for most academic researchers. University salary scales are typically determined by rank, department, and institution type rather than individual distinction. A distinguished associate professor at a major research university in most fields earns a salary that is within the standard range for that rank and institution, not significantly above what peers in the same role typically earn.

Industry researchers, by contrast, often receive compensation that can support this criterion when they are at senior levels at well-funded companies with strong salary benchmarking data. The documentation approach is the same as for CXOs: total compensation including bonuses and equity, compared to benchmark data from recognized surveys showing the researcher's compensation is significantly above the median for their role and location.

For academic researchers who do have above-market compensation through consulting fees, expert witness work, patent royalties, or other supplemental income alongside their university base salary, the total remuneration argument may be available. This requires documenting all income sources and comparing the total to benchmark data for the specific academic role.

Profile-Building: A Researcher-Specific 12-Month Roadmap

Months 1 to 3: Audit Your Record and Identify Your Evidence Gaps

Begin with a comprehensive audit of what you have versus what is documented. Most researchers have more qualifying activity than they have organized into evidence. The audit should cover:

• Publications: pull the complete list from Google Scholar, Web of Science, and Scopus. Note for each paper the journal's impact factor and standing in the field, your role (first, corresponding, or contributing author), and the total independent citations from outside your own research group and institution.

• Peer review and judging activity: identify every journal, conference, grant panel, and evaluation role where you have served. Request documentation for any role where you do not have a saved invitation email. Publons provides a starting point for documented review records.

• Awards and competitive grants: list every fellowship, prize, and competitive grant you have received, with the funding source, award amount, and any available data on selectivity (success rate, number of applicants).

• Engagement with your work: identify researchers outside your institution who have cited your work in ways that suggest they built upon it, adopted your methodology, or referenced your contributions as pivotal. These researchers are potential letter writers.

This audit will reveal which of the three core criteria you can document strongly today, where your record is thin, and what is achievable in 12 months with targeted effort.

Engage immigration counsel at this stage, before committing to a filing timeline. The attorney's function at this point is to evaluate your current evidence against all eight criteria and identify specifically what gaps to fill rather than giving you a general encouragement to file when you have more publications.

Months 3 to 6: Systematically Build Your Peer Review Record

If you are not already receiving regular peer review invitations, begin proactively requesting them from journals in your field. Most journal editors maintain lists of willing reviewers and respond positively to well-framed requests from researchers who clearly have relevant expertise. A brief email to a journal editor identifying your publication record and offering your availability for review in your specific area is the standard approach.

The target is consistent, documented peer review activity at recognized journals in your field. Two to three reviews per journal, spread across three to five different recognized journals, establishes a pattern of trusted expert evaluation that is substantially more compelling than a single review for a top journal. Set Publons or Web of Science ResearcherID up to capture your review activity automatically.

Apply to serve on grant review panels. NSF maintains a reviewer database through their FastLane system. NIH uses the Center for Scientific Review's reviewer database. Many foundations and international funding agencies have similar processes. Applying to these databases puts your name in front of program officers who select panel members. This takes time to bear fruit: it may be six to twelve months from application to first invitation.

Months 6 to 9: Generate and Document Independent Engagement With Your Work

The original contributions criterion is only as strong as the independent evidence that others engaged with your work. This requires proactive documentation effort, because the engagement that already exists often is not in the form USCIS can easily evaluate.

Pull citation data and identify the most significant examples: papers that cite your work substantively, not in passing, where the citing author engaged with your specific contribution and built upon it. For the strongest of these, reach out to the citing author and ask if they would be willing to write a letter describing how they used your work. A letter from a researcher at a different institution who explains specifically how your methodology changed their approach is among the most powerful pieces of evidence available for this criterion.

Document any downstream impact beyond citations: adoption of your methods in clinical guidelines, regulatory applications that reference your findings, textbook inclusions, review article discussions of your contribution, or other indicators that your work has become part of how the field operates.

For researchers with patents, document the commercial status: has the patent been licensed? Has it been cited in other patents? Has a product been developed based on it? Licensing agreements and commercial adoption are concrete evidence of significance that supplements citation data effectively.

Months 9 to 12: Pursue Awards and Document Critical Role

Identify specific awards and fellowships for which you could reasonably be nominated and begin the nomination process. For many prestigious scientific awards and fellowships, nominations must be submitted by colleagues or institutional leaders rather than by the researcher themselves. Identify two or three potential nominators now and have a conversation about whether the nomination makes sense given your current record.

• For PIs: document the critical role evidence for your research program. Pull the grant agreements showing your PI designation and the program's funding and scope. Prepare an organizational description of your research group, the grant's multi-institutional structure if applicable, and a description of the decisions that are specifically yours as PI. Collect letters from collaborating investigators and program officers who can describe your central role.

• For researchers transitioning from academic to industry research or vice versa: the January 2025 USCIS policy update recognized career transitions as valid continuations of extraordinary ability. Document the connection between your academic expertise and your industry role explicitly in the petition narrative.

Evidence Presentation: What USCIS Actually Reviews

Academic evidence requires translation for immigration purposes. A USCIS adjudicator reviewing a researcher's O-1A petition is typically a generalist who has handled cases from many fields. They do not know what an h-index of 22 means in computational biology or why publishing in Physical Review Letters matters in condensed matter physics. The petition must explain these things clearly and specifically without assuming field knowledge.

• Every journal needs contextualization: "This paper was published in Nature Medicine, a journal that publishes fewer than 5% of submitted manuscripts and is consistently ranked among the highest-impact journals in the biomedical sciences." Every citation number needs a benchmark: "Dr. Park's 2019 paper has received 847 independent citations. Based on Web of Science field-normalized citation data, this places the paper in the top 1% of all papers published in immunology in 2019." Every award needs selectivity data: "The NSF CAREER award has a success rate of approximately 20%, making it one of the most competitive early-career research awards in the United States."

• The evidence file for a research-based O-1A typically includes: the complete Google Scholar and Web of Science profiles, field-normalized citation reports from Web of Science or Scopus, Publons verified review record, copies of all peer review invitation emails with journal letterhead, copies of all award letters and grant notices with selectivity data, all expert letters with the letter writers' credentials established in each letter, and a petition narrative that contextualizes every piece of evidence for a generalist reader.

The Kazarian Two-Step for Researcher Cases

At Step 1, USCIS evaluates whether evidence exists that at least three of the eight criteria are satisfied. The scholarly articles criterion, original contributions criterion, and judging criterion together typically clear Step 1 for researchers with a meaningful publication record and peer review activity.

At Step 2, USCIS evaluates the totality of all evidence to determine whether it establishes that the researcher has sustained national or international acclaim and stands among the small percentage at the very top of their field. This is where many researcher petitions that appeared strong at Step 1 encounter difficulty.

The most common Step 2 failure for researcher cases is that the evidence presents a productive, well-regarded researcher rather than one at the very top of the field. A solid publication record in good journals, a reasonable citation count, and routine peer review service describes a large population of competent academic researchers. 

What distinguishes extraordinary ability at Step 2 is evidence that the specific researcher is recognized above this general population: independent letters that do not merely praise the researcher but explain why their specific contributions stand above peers, citation data that is field-normalized and places the work in a demonstrably elite percentile, and evidence of recognition that researchers seek out rather than recognition that was received as a matter of normal academic participation.

A single high-impact publication with hundreds of independent citations is more persuasive than five publications with no engagement. Strong evidence across three criteria, coherently documented, consistently outperforms thin evidence spread across seven.

The J-1 Researcher: A Critical Complication

Many foreign researchers enter the United States on J-1 exchange visitor visas, which carry unique restrictions that do not apply to H-1B or F-1 visa holders.

The two-year home residency requirement under INA 212(e) requires certain J-1 visitors to return to their home country for two years before applying for certain U.S. immigration benefits, including H-1B, L-1, and adjustment of status to permanent residence. The requirement applies to J-1 visitors whose exchange program was funded by the U.S. government or the government of the home country, or whose skills are on the Exchange Visitor Skills List for their home country.

Critically, changing status to O-1A from within the United States is specifically listed as one of the benefits unavailable without satisfying or obtaining a waiver of the two-year home residency requirement. A J-1 researcher subject to 212(e) who files for O-1A change of status without first obtaining a waiver will be denied.

Researchers should determine early whether they are subject to the two-year home residency requirement and, if so, whether to pursue a waiver before seeking O-1A status. Waivers are available on several grounds, including a no-objection statement from the home country government, a hardship waiver for exceptional circumstances, an interested U.S. government agency waiver, and a Conrad 30 waiver for physicians. The waiver pathway depends on the researcher's specific situation and requires separate legal analysis.

The O-1A, EB-1A, and EB-2 NIW: A Coordinated Strategy

The three immigration categories most relevant to research careers share significant evidence overlap, and a coordinated filing strategy is usually more efficient than pursuing them sequentially.

The O-1A provides nonimmigrant authorization to continue research work in the United States immediately, with three-year validity and unlimited extensions. It requires an employer or agent to file as petitioner and is not a path to a green card on its own.

The EB-2 NIW allows self-petition for a green card based on advanced degree or exceptional ability, where the work serves the national interest. For researchers, this is often the most accessible green card pathway. The NIW Dhanasar standard requires that the proposed endeavor has substantial merit and national importance, that the researcher is well-positioned to advance it, and that waiving the normal job offer and labor certification requirements is in the national interest. 

Research in areas identified in federal strategic plans, that fills documented needs in healthcare or technology, or that addresses major challenges with broad implications qualifies. Filing the EB-2 NIW I-140 early establishes a priority date even while the researcher is building toward the stronger EB-1A standard.

The EB-1A allows self-petition for a green card based on extraordinary ability, using the same eight-criterion framework as the O-1A. For most countries, EB-1A priority dates are currently available without significant backlog. Filing an EB-1A I-140 once the profile is strong enough, while an EB-2 NIW I-140 is already establishing a priority date, gives the researcher two paths to permanent residence while maintaining full flexibility in employment.

Many immigration attorneys advise researchers to file the EB-2 NIW I-140 as early as the profile reasonably supports it, use the O-1A for nonimmigrant authorization while continuing to build toward EB-1A, and then file the EB-1A I-140 when the evidence clearly supports the higher standard. This approach maximizes priority date accumulation and minimizes the risk of a gap in authorized status.

Frequently Asked Questions

I am a postdoc. Am I too early in my career to qualify?

Potentially not. The January 2025 USCIS update confirmed that recognition need not be at advanced career stages. Postdocs with a meaningful first-author publication record in recognized journals, active peer review service, and a competitive fellowship or award can sometimes build a qualifying case. The threshold question is whether the evidence demonstrates sustained national or international acclaim, not whether the researcher holds a faculty title. An individualized assessment is necessary before drawing conclusions.

Do preprint papers on arXiv or bioRxiv count as scholarly articles?

USCIS has not issued specific guidance on preprints. Published preprints at recognized repositories like arXiv are widely read and cited in many fields, but they have not undergone peer review, which is the feature that gives journal articles their evidentiary weight under the scholarly articles criterion. 

Citations to arXiv papers are real citations and count toward the original contributions criterion. Whether a preprint itself satisfies the scholarly articles criterion is a question of how it is presented and whether the petition can establish that the venue is recognized as a significant outlet in the field. In fields where arXiv preprints are the primary mode of scientific communication, this argument is more credible than in fields where journals remain the standard.

My university pays me a standard academic salary. Does this disqualify me?

No. The high salary criterion is one of eight, and you need only satisfy three. Most academic researcher cases do not use high salary as a primary criterion. If your case is otherwise strong, the absence of an above-market salary does not prevent qualification.

Can I change status from F-1 OPT to O-1A without leaving the United States?

Yes, if you are in valid F-1 status during OPT and your OPT EAD has not yet expired. The employer files Form I-129 with a request for change of status. If approved, the change of status takes effect on the approval date or the requested start date, whichever is later. Planning the timing carefully is important: the OPT must still be valid when the petition is filed, and it is advisable to file early given current USCIS processing times.

How do expert letters work differently for researchers than for other professionals?

The core requirements are the same: independent, specific, and from recognized experts in the field. For researchers, the most powerful letters come from other researchers who have engaged with the applicant's specific work in their own research. 

A letter from a scientist at another institution who explains how they used the applicant's published methodology in their own experiments, and why that methodology was significant, is more compelling than a general letter of praise from a senior colleague at the same institution. The independence matters, but so does the specificity of the engagement with the work.

This article is intended for general informational purposes only and does not constitute legal advice. O-1A requirements, USCIS policies, and processing times change frequently. For an assessment of your specific research profile and the evidence needed to build your case, consult a licensed immigration attorney experienced in extraordinary ability petitions for researchers and scientists.