The U.S. Department of State has significantly expanded the use of Visa Security Advisory Opinions (SAOs) in 2026, triggering widespread visa processing delays for applicants in certain nationalities, academic fields, and professional categories. SAOs are security checks that require referral to U.S. intelligence and security agencies before a visa can be issued.
What Is a Security Advisory Opinion (SAO)?
An SAO is a mandatory clearance process that pauses visa issuance while the State Department consults with other U.S. government agencies on a visa applicant's background, activities, and potential security concerns. The process can take weeks to years.
Why SAO Referrals Are Increasing
The expansion is driven by several converging policy directives in 2026, including heightened scrutiny of applicants in STEM fields with potential dual-use research implications, broadened country-specific security profiles, increased referral of applicants with certain social media activity, and expanded Technology Alert List (TAL) coverage.
Who Is Most Commonly Affected by SAOs
Mantis SAO (Technology Alert List)
Applicants in science, technology, engineering, and mathematics (STEM) fields — particularly those working in areas with potential military applications — are frequently referred for Mantis SAO clearances. Common fields triggering Mantis reviews include nuclear physics, advanced materials, aerospace engineering, robotics, AI/machine learning research, and biotechnology.
Condor SAO (Terrorist Risk)
Applicants from certain countries or with certain travel histories may be referred for Condor SAO checks, focused on terrorism-related security concerns.
Country-Based SAOs
Nationals from certain countries — including those subject to the travel ban — face mandatory SAO referrals regardless of field or profession.
Typical SAO Processing Times
| SAO Type | Typical Range | Risk of Extreme Delay |
|---|---|---|
| Mantis (STEM/Technology) | 3–9 months | Moderate to High |
| Condor (Security Risk) | 6–18+ months | High |
| Country-Based (Mandatory) | 2–12 months | Moderate |
| Name Check (Routine) | 2–8 weeks | Low |
Visa Categories Most Affected
- J-1 Exchange Visitors (researchers, professors, students in STEM)
- H-1B applicants applying for visa stamps abroad
- F-1 students in technology-related fields
- O-1 applicants in scientific fields
- Immigrant visa applicants from SAO-mandatory countries
What Applicants Can Do
- Apply as early as possible — SAO clearances cannot be expedited by the applicant
- Do not book non-refundable travel or accept employment start dates that don't account for potential SAO delays
- Prepare detailed academic and professional documentation explaining the nature of research and affiliations
- If SAO clearance is confirmed pending, applicants may inquire about status through their U.S. senator's office or congressional representative
Key Takeaway
SAO referrals are increasing in scope and frequency in 2026. STEM researchers, applicants from high-scrutiny countries, and professionals in dual-use fields should plan for potential multi-month visa delays. There is no way to expedite or bypass an SAO once triggered — early application is the only mitigation.
FAQs
Can I speed up an SAO clearance?
No. SAO clearances are managed by U.S. intelligence agencies and cannot be expedited by applicants, attorneys, or consular officers.
Will I know if I've been referred for an SAO?
Consular officers may inform applicants that their case is in "administrative processing," which often signals an SAO referral, but they will not confirm the specific check type.
Does an SAO referral mean I'll be denied?
No. Most SAO referrals are ultimately cleared. Delays do not indicate a likely denial.