USCIS Policy
July 2025: Preponderance of Evidence in O-1
Real-world insights from recent cases. Learn what worked and how to apply these lessons.
Why the Preponderance Standard Matters in July 2025
By July 2025, the preponderance of evidence standard remains the single most misunderstood concept in O-1 adjudications, even though it has been controlling law since the Administrative Appeals Office decided Matter of Chawathe in 2010. The standard requires that an applicant show that what they claim is more likely than not true, which translates roughly to a fifty-one percent probability. This is dramatically lower than the clear and convincing standard or the beyond a reasonable doubt standard that some petitioners and even some attorneys instinctively apply when they see a high-profile visa category.
USCIS officers in 2025 are required by their own Policy Manual to apply Chawathe to O-1 petitions filed under 8 CFR 214.2(o), and this means that when evidence is contradictory or incomplete, the officer must still grant the petition if the totality of the record makes the claim more likely true than not. In practice, however, Requests for Evidence often read as if the officer is demanding certainty. Understanding that you only need to tip the scale, not eliminate every doubt, changes the way you build a record from the first piece of evidence forward.
The July 2025 environment has seen continued emphasis on the Kazarian two-step framework even though Kazarian itself was an EB-1A case. Adjudicators apply its logic by first counting whether the evidence categorically meets the regulatory criteria and then performing a final merits determination. Petitioners who understand this two-step structure can prepare evidence specifically designed to satisfy each phase, rather than producing a single undifferentiated pile of exhibits.
Matter of Chawathe and Its Practical Application
Matter of Chawathe involved a naturalization issue, not an O-1 petition, but its holding on the burden of proof has been adopted as the controlling standard for nearly all benefit applications including those filed under 8 CFR 214.2(o)(3). The case stands for the proposition that even if some evidence is doubtful, an officer must weigh all the evidence and decide whether the claim is more likely than not true. For O-1 beneficiaries, this means that a single weak letter does not sink the petition if the record overall is strong.
A practical example: a software engineer applying in July 2025 had two recommendation letters that used templated language and one that contained a factual error about her employer. Standing alone, those letters would have looked weak. But she paired them with five strong independent letters, three peer-reviewed articles, two press citations in TechCrunch, and an invitation to judge the ACM CHI program committee. The officer correctly applied Chawathe and approved the petition, noting that the totality of evidence preponderated in her favor.
Common mistake: many petitioners treat every piece of evidence as if it must independently prove extraordinary ability. This leads to over-explanation, inflated claims, and ultimately erodes credibility. The better practice is to let the evidence speak for itself, acknowledge weaknesses where they exist, and trust the cumulative weight of the record. Officers respect candor, and a petition that admits a mid-tier publication while emphasizing a strong one reads more credibly than one that claims every venue is top-tier.
The Kazarian Two-Step in O-1 Context
Although Kazarian v. USCIS arose under the EB-1A standard, USCIS has imported its analytical structure into O-1 adjudications. Step one is a categorical count: does the petitioner meet at least three of the eight criteria listed at 8 CFR 214.2(o)(3)(iii)(B) for O-1A, or does the petitioner satisfy the alternative O-1B framework? At this stage, the officer is not supposed to make qualitative judgments about whether the awards are prestigious enough or the press is influential enough, only whether each piece of evidence facially fits the regulatory definition.
Step two is the final merits determination, which is where qualitative judgments enter. The officer asks whether, taken together, the evidence demonstrates that the beneficiary is one of the small percentage who has risen to the very top of the field. This is where a strong record overcomes individual weak items, and where preponderance becomes the operative standard.
Petitioners who structure their exhibit list to mirror this two-step analysis tend to fare better. For example, an exhibit index that explicitly groups evidence under each of the eight regulatory criteria and then includes a final-merits section with broader context tells the officer exactly how to read the record. Doing this work for the officer reduces the chance of an RFE that merely reflects the officer's confusion.
Expert Letters as the Tipping Point
In a close case under the preponderance standard, the quality of expert letters often determines the outcome. A high-quality letter does three things. First, it establishes the writer's authority by describing their position, publications, and standing in the field. Second, it explains how the writer knows the beneficiary and how that relationship gives them a basis to evaluate the work. Third, it provides specific, verifiable facts about the beneficiary's contributions and the impact of those contributions, ideally citing third-party metrics or publications.
A common mistake in July 2025 is the over-reliance on independent expert letters from people who have never met the beneficiary and whose only knowledge comes from a packet of materials sent by counsel. While such letters can supplement the record, USCIS officers have grown skeptical of them, particularly when multiple letters share suspiciously similar phrasing. A handful of substantive letters from collaborators and arms-length experts beats a stack of generic letters every time.
Practical example: a research neuroscientist had her petition approved in July 2025 largely because of a single letter from a Howard Hughes Medical Institute investigator who had attended her conference talk and could describe, in concrete detail, how her novel imaging technique had influenced his lab's experimental design. That one letter tipped the balance under preponderance because it was specific, credible, and arms-length.
Building the Record with the Standard in Mind
When you assemble an O-1 petition under 8 CFR 214.2(o), think of the record as a courtroom exhibit. Every piece should serve a purpose, and weak pieces should be omitted unless they fill a unique gap. The preponderance standard rewards focus and coherence over volume. A 200-page record with a tight narrative usually outperforms a 600-page record that buries the strongest evidence.
Tabbed exhibits, an indexed table of contents, and a cover petition letter that maps each criterion to specific tabs all help the officer perform the Chawathe weighing correctly. In July 2025, USCIS service centers continue to handle large caseloads, and a record that is easy to adjudicate is more likely to receive a fair reading.
Common mistake: petitioners sometimes pad the record with peripheral evidence such as undergraduate transcripts, conference attendance certificates, or general industry articles that do not name the beneficiary. These do not advance the preponderance analysis and can dilute stronger evidence. Cut ruthlessly, and let the strong items shine.
Responding to RFEs Under Preponderance
When an RFE arrives, read it carefully to determine whether the officer is applying the correct standard. RFEs that demand definitive proof of impact, or that suggest the beneficiary must be the single most accomplished person in the field, signal that the officer has drifted above the preponderance threshold. The response should politely but firmly cite Matter of Chawathe and the USCIS Policy Manual to reanchor the analysis.
Effective RFE responses also avoid simply resubmitting the original evidence with louder rhetoric. Instead, they add new probative evidence: an additional expert letter from a recognized authority, a new press citation that emerged after filing, or a translation and authentication of evidence the officer found unclear. The goal is to give the officer something new to weigh, not to re-litigate what was already submitted.
Practical example: a July 2025 RFE in an O-1A case for a fintech executive demanded proof that his company's growth was attributable to him personally. The response cited Chawathe, included a new declaration from the company's board chair specifying his strategic role, and added two press articles about his keynote at Money 20/20. The petition was approved on the response.
Common Mistakes and How to Avoid Them
The first common mistake is treating O-1 like a binary pass-fail test on each criterion. The criteria at 8 CFR 214.2(o)(3)(iii)(B) are categorical thresholds, but the merits determination is holistic. Petitioners who try to maximize every criterion individually often produce records that look exaggerated. Better to demonstrate solid evidence across three or four criteria and a strong final merits picture.
The second common mistake is failing to authenticate foreign documents. Foreign-language press articles must be translated under 8 CFR 103.2(b)(3), and foreign awards or memberships should be accompanied by background information about the granting body. Without this, the officer cannot weigh the evidence properly under preponderance.
The third common mistake is filing too thin a record on the assumption that preponderance means low evidence is acceptable. Preponderance is the standard of proof, not a license to under-document. The petitioner still bears the burden, and the record must contain enough probative evidence for the officer to perform a meaningful weighing. Aim for sufficiency with focus, not minimalism.