USCIS Policy
USCIS O-1 Approval Rate Trends: What Adjudicator Patterns Mean for Your Petition
O-1 approval rates are often quoted without context that makes them meaningful for petition strategy. This guide examines what USCIS data actually shows, how RFE rates differ from approval rates, and what adjudicator patterns mean for building a resilient petition in 2026.
Why approval rate data matters
Published approval rate data for O-1 petitions has become a fixture in practitioner discussions and immigration media, but the numbers are routinely cited without the context that makes them analytically useful. A raw approval percentage tells you nothing about which petitioners were filing, what evidence they submitted, or how the filing population changed from year to year. The approval rate for O-1A petitions filed by biomedical researchers at elite universities, backed by comprehensive documentation from experienced practitioners, is likely to be materially higher than the rate for petitioners with less evidence-intensive profiles. Conflating these populations produces a number that is difficult to apply to any specific case.
Approval rates also shift in response to policy changes that may not be visible in the numbers without additional context. USCIS policy memos — such as the 2010 Kazarian decision guidance and subsequent AAO decisions — have periodically reoriented how adjudicators evaluate O-1 petitions, and those reorientations show up in the approval rate data as trends that look like they reflect something about petitioners when they actually reflect something about the adjudicatory framework. A practitioner who interprets a drop in approval rates as evidence that O-1 has become harder to obtain, without investigating whether the policy environment changed, may draw the wrong conclusions for their client's filing strategy.
Despite these limitations, approval rate data — especially when disaggregated by visa category, service center, fiscal year, and petition type — provides a useful directional signal. It can confirm that a particular category is experiencing elevated scrutiny, identify which service center has been applying a stricter interpretive standard, or flag the emergence of new RFE trends before they are formally announced in policy guidance. The practitioner who knows how to read the available data critically, adjusting for its known deficiencies, is better positioned to anticipate adjudicatory behavior than one who either ignores the data or accepts it at face value. The sections below describe what the data actually contains and how to draw defensible conclusions from it.
What USCIS publicly discloses
USCIS publishes annual data on nonimmigrant petition adjudications through the USCIS Electronic Reading Room and its data hub. The available data for O-1 petitions typically includes total petitions received, total petitions approved, total petitions denied, and — since fiscal year 2018 — RFE receipt rates broken out by category and service center. USCIS does not publicly release data on the size or quality of the evidence submitted with approved versus denied petitions, which means the publicly available data cannot be used to determine what standard of evidence is associated with approval. What the data can show is trends in approval volume, approval rate, and RFE issuance rate over time and across administrative units.
The data is published at the fiscal year level, with each report typically released with a six- to twelve-month lag. As of mid-2026, the most recent complete fiscal year data available covers periods through fiscal year 2025. Practitioners relying on this data for filing strategy should note that policy conditions at the time of filing may differ from conditions at the time of the most recent data. USCIS adjudicatory behavior can shift significantly within a single fiscal year — particularly around changes in leadership priorities, new policy guidance, or high-volume petition seasons — and the annual data may not capture intra-year variation that is practically relevant to a petition filed in a particular quarter.
In addition to the aggregate data, the AAO publishes decisions that are publicly available through USCIS's online decision database. AAO decisions are particularly useful because they explain the reasoning behind denials and appeals, including which types of evidence were found insufficient and why. A practitioner who regularly reads AAO decisions on O-1A and O-1B petitions has access to a richer evidentiary standard than can be inferred from approval rate statistics alone. AAO decisions do not constitute binding precedent in the same way that federal court decisions do, but the reasoning they articulate informs how service center adjudicators interpret the regulation and what constitutes sufficient evidence across each criterion.
Service center variation
O-1 petitions are adjudicated at two service centers: the Texas Service Center and the California Service Center. USCIS data shows that O-1 approval rates and RFE rates have varied meaningfully between the two centers in different fiscal years. This variation is not random; it tends to reflect differences in staffing, supervisory interpretation of the evidentiary standard, and internal training on particular petition types. Practitioners who file a high volume of O-1 petitions often develop an empirical sense of which center is currently applying a stricter standard on specific criteria, though this knowledge is necessarily anecdotal and can change quickly as supervisory staff rotates or policy guidance is updated.
The practical significance of service center variation depends on whether the petitioner has any control over which center adjudicates the petition. For most O-1 petitions, USCIS routing is determined by the employer's location, and the petitioner typically does not have a choice. However, petitioners filing with employers in states that straddle the jurisdictional boundary, or those filed through petition management services with flexibility in employer addresses, may have some opportunity to route strategically. More commonly, the relevance of service center variation is in calibrating evidence: if one center is currently issuing RFEs at a higher rate on a particular criterion, a petition filed there should be prepared to meet a higher documentary standard on that criterion.
Service center variation also affects processing time, which has indirect strategic significance. A petitioner who needs a decision within a specific window to meet a project start date or immigration status expiration may face a service-center-level processing time constraint that bears on whether premium processing is advisable. Premium processing guarantees a 15-business-day decision, including an RFE if one is issued — it does not guarantee approval. In periods when a service center is issuing RFEs at elevated rates, premium processing reduces processing time but does not reduce RFE exposure. A petitioner who files premium and receives an RFE in a high-scrutiny environment needs a practitioner who can respond to the RFE quickly and substantively.
RFE rates vs. approval rates
Approval rates and RFE rates measure different things, and confusing them leads to strategically incorrect conclusions. An approval rate measures the fraction of decided petitions that resulted in approval; an RFE rate measures the fraction of petitions that triggered a request for additional evidence before a decision was made. A service center with a high approval rate but also a high RFE rate is demanding additional evidence from most petitioners before approving them, while a center with the same approval rate but a low RFE rate is approving most petitioners on the initial submission. Both scenarios produce the same final approval rate but represent very different adjudicatory experiences and very different burdens on the petitioner.
RFE rates are particularly useful as a measure of evidentiary standard because they capture cases where the initial submission was found insufficient rather than outright deniable. A high RFE rate on a specific criterion — the critical role criterion, for example — indicates that service center adjudicators are finding that initial submissions on that criterion consistently fall short of the evidentiary standard, even when those submissions are ultimately approved after the RFE response. For practitioners, a high RFE rate on a given criterion is a signal to front-load evidence on that criterion in the initial submission, rather than relying on the RFE response process to fill gaps that could have been addressed at filing.
USCIS began publishing RFE rate data by category beginning in fiscal year 2018, which makes historical trend analysis on RFE rates limited to a shorter time series than the approval rate data. The O-1A category has historically had higher RFE rates than the O-1B category in most fiscal years for which data is available, which aligns with practitioner experience: O-1A adjudication tends to apply a more rigorous evidentiary standard, partly because the extraordinary ability standard under 8 C.F.R. § 214.2(o)(3)(ii)(A) is interpreted strictly, and partly because the O-1A population includes a larger proportion of self-represented petitioners and lower-volume practitioners who may submit less evidence-intensive initial filings.
How adjudicator patterns inform strategy
Beyond aggregate statistics, adjudicatory patterns in RFE language and AAO decision reasoning provide the most actionable intelligence for petition strategy. USCIS does not publish lists of the criteria or evidence types most commonly implicated in RFEs, but practitioners who track RFE language across their practice portfolios develop a consistent picture of the recurring deficiencies that adjudicators identify. The critical role criterion has generated RFE language focused on the sufficiency of employer letters; the high salary criterion has generated RFEs targeting the choice of comparison benchmark and its application to a specific locality or industry segment; the judging criterion has generated RFEs questioning whether the petitioner's panel service constitutes judging the work of others in the field or merely participating in an internal institutional process.
The most strategically useful response to adjudicatory patterns is to treat the most common RFE triggers as a pre-filing checklist. Before submitting an O-1A petition, an experienced practitioner will verify that the critical role letter is specific enough to avoid the most common letter-based RFE, that the salary comparison methodology uses a benchmark that has survived prior adjudication, that judging exhibits are accompanied by documentation of the panel's scope and the petitioner's evaluative role, and that awards evidence is accompanied by documentation of the award's selection criteria and the breadth of the competitive pool. Addressing these points proactively converts known RFE triggers into handled exhibits rather than live vulnerabilities.
The 2026 adjudicatory environment for O-1 petitions reflects several patterns that practitioners have observed consistently across service centers. The Kazarian two-step continues to be applied rigorously, with denials at the final merits step increasing as a proportion of total denials relative to earlier periods. Original contributions submissions are receiving more detailed scrutiny, with adjudicators increasingly requiring third-party evidence of the significance of a contribution rather than accepting expert letters that assert significance without corroborating context. Salary criterion submissions are being evaluated more carefully against locality-specific and role-specific benchmarks rather than national averages. Collectively, these patterns suggest a directional trend toward more evidence-intensive initial submissions and more careful framing across all criteria.
Practical recommendations
The most direct application of approval rate and RFE data to petition strategy is a pre-filing evidence audit that treats each criterion as a discrete threshold with a known pattern of deficiency. For each of the eight O-1A criteria or six O-1B criteria claimed, the practitioner should ask: what does USCIS's adjudicatory record show about the type and quality of evidence required to satisfy this criterion without an RFE? What is the most common deficiency identified in RFEs on this criterion? Is the petitioner's evidence for this criterion addressed in the initial filing at the level that surviving-the-RFE-response submissions achieve, or only at the level that triggers the RFE in the first place?
Second, practitioners should monitor available data at the service center level on a rolling basis rather than treating prior-year data as a fixed reference. USCIS adjudicatory behavior can shift meaningfully across quarterly periods, and a practitioner who calibrates their filing strategy to an earlier fiscal year and files in the second quarter of fiscal year 2026 may be responding to a policy environment that has changed. Subscription to practitioner alerts from the American Immigration Lawyers Association, USCIS update feeds, and AAO decision databases provides a practical mechanism for staying current on adjudicatory developments without waiting for annual data releases.
Finally, the approval rate and RFE data should be read alongside the specific facts of the petitioner's case rather than applied as an abstract statistical argument. A petitioner with compelling evidence across multiple criteria is not meaningfully at risk from a service center that is currently applying a stricter standard on the critical role criterion, as long as the critical role evidence in their petition is sufficient. The data is most useful as a calibration tool for borderline evidence and as an early-warning system for emerging RFE patterns, not as a substitute for case-specific analysis of what the petitioner's actual evidentiary record can support at the time of filing.
What we typically gather for this kind of case
| Document | Where to source | Why it matters |
|---|---|---|
| Petition cover memo | Drafted by counsel | Frames every exhibit before the adjudicator opens it |
| Advisory opinion | Peer or labour organization | Required for most O-1 filings — request early |
| Itinerary or job offer | U.S. petitioner (employer or agent) | Documents the bona fide nature of the U.S. work |
| Premium Processing fee | Form I-907 + $2,805 fee | Guarantees 15-business-day adjudication |
What we see go wrong, again and again
- 01Filing close to a start date and relying on Premium Processing as a backup rather than a deliberate strategy.
- 02Treating the I-129 as the substantive filing rather than a cover sheet for the legal brief and exhibits.
- 03Underweighting the advisory opinion — a thin or hostile opinion is hard to overcome at the response stage.