A Security Advisory Opinion (SAO) is an additional security check implemented by the U.S. Department of State to ensure that visa applicants do not pose a threat to national security. Introduced after the events of September 11, 2001, the SAO process is used to screen for concerns such as espionage, terrorism, and the illegal transfer of sensitive technology. This procedure also applies to refugees and certain other visa applicants to ensure comprehensive vetting.
Which U.S. Government Agencies Are Involved in SAO Processing?
SAO processing involves multiple U.S. government agencies. Once the Department of State flags the need for an SAO, it forwards the case to one or more of the following agencies, depending on the type of review required:
- Department of Homeland Security (DHS)
- Federal Bureau of Investigation (FBI) – National Name Check Program (NNCP)
- Central Intelligence Agency (CIA)
- Drug Enforcement Agency (DEA)
- Department of Commerce
- Department of Treasury – Office of Foreign Assets Control
- Bureau of International Security and Nonproliferation (within the State Department)
- Interpol
These agencies collaborate to assess any security concerns before a decision is made on the visa application.
What Triggers an SAO?
Several factors can lead to a visa application being flagged for an SAO. While any applicant, regardless of nationality, can be subject to this review, some situations make it more likely:
- Flagged Name in CLASS: The applicant’s name appears in the Consular Lookout and Support System (CLASS), which tracks individuals with potential security concerns.
- Previous Unfavorable SAO: If the applicant has been subject to an unfavorable SAO in the past, a new SAO is automatically triggered.
- Nationality: Applicants from countries not recognized by the U.S. or without diplomatic relations, as well as nationals from state sponsors of terrorism, are more likely to undergo an SAO.
- National Security Concerns: If a consular officer has reasonable grounds to believe the applicant may be involved in activities such as espionage, terrorism, or the transfer of sensitive technology (e.g., those on the Technology Alert List (TAL)), an SAO will be triggered.
- Refugees and Asylees: Specific types of visas, such as Visa Merlin, apply to refugees and asylees. Refugees from certain countries undergo SAO screening, and these checks are valid for 15 months.
SAO Processing Times
SAO processing times can vary, and information on the length of time it takes is limited. According to the State Department, most administrative processing, including SAOs, is completed within 60 days of the visa interview. The FBI reports that 97% of certain types of SAOs are completed within 120 days. However, processing times for refugees are less predictable, with little information available regarding how long SAO checks take.
Conclusion
The SAO process plays a critical role in safeguarding U.S. national security by thoroughly vetting visa applicants who may pose a threat. This multi-agency review helps ensure that individuals involved in espionage, terrorism, or sensitive technology transfers are detected and denied entry. Given the complexity of this process, applicants undergoing SAO review should be aware that it may take longer than standard visa processing, and consulting with an immigration lawyer can help navigate any concerns.
Schedule a Consultation with an Immigration Lawyer
Citations
We Can Help!
If you have questions regarding a U.S. immigration matter, we invite you to contact our team at Richards and Jurusik for detailed guidance and assistance. We aim to provide the most accurate and up-to-date information to make your immigration process smoother and less stressful. The immigration lawyers at Richards and Jurusik have decades of experience helping people to work and live in the United States. Read some of our hundreds of 5-star client reviews! Contact us today to assess your legal situation.

JEREMY L. RICHARDS is the founding partner of Richards and Jurusik and has dedicated his career to U.S. immigration law, with a specialized focus on assisting Canadian and Mexican citizens under the United States-Mexico-Canada Agreement (USMCA) to work and live in the United States. (Full Bio)
