
USCIS’s Fraud Detection and National Security (FDNS) unit conducts unannounced inspections of the worksites of employers who sponsor foreign workers. The purpose of a site inspection is to verify the existence of the employer, check the truth of the information provided by the employer in its immigration petitions and ensure that sponsored workers are complying with the terms of their admission to the United States.
FDNS has been making site visits for several years, focusing principally on H-1B and L-1A employers. But according to a draft executive order on employment-based immigration, the Trump Administration plans to broaden the program in the near term to cover the L-1B specialized knowledge category and in the longer term to all immigration categories. Though the draft executive order has not yet been finalized, an increase in FDNS inspections could occur even in the absence of specific presidential actions.
What Happens During a Site Inspection
During a site inspection, an FDNS officer will verify the contents of a specific immigration petition, usually by visiting the work location listed in the petition. The officer may ask to speak to a human resources manager or other company representative, the foreign worker and his or her direct supervisor or manager. The officer may ask for a tour of the premises and request documents like payroll records and organizational charts. The employer can ask to have an attorney present during the site visit. Officers will not typically reschedule a site visit so that an attorney can be there, but may agree to allow counsel to be present by phone.
After a site visit, the officer may contact the employer by phone or email to request additional information. If there appears to be a discrepancy between the petition and the information gathered during the visit and in subsequent communications, USCIS may notify the employer of its intent to revoke the petition. If that occurs, the employer will have the opportunity to explain any perceived inconsistencies. If there have been material changes to the foreign worker’s job or conditions of employment since the approval of the petition, the employer may need to file an amendment with USCIS.
What This Means for Employers
Your organization should make sure it is prepared for an FDNS site visit. A point person should be designated at each worksite where a sponsored foreign national is employed. Receptionists and security personnel should be instructed about receiving FDNS officers. Foreign nationals and their managers should also be advised of the possibility of a site inspection and what to expect.
Make sure to review Fragomen's detailed FAQ about FDNS worksite inspections. If you have any questions, please contact your designated Fragomen professional. This alert is for informational purposes only.
Explore more at Fragomen
Blog post
Senior Business Immigration Consultant Ryaihanny Sahrom and Business Immigration Consultant II Fahimah Muhammad examine Indonesia’s newly launched Global Citizenship of Indonesia (GCI) program and its introduction of long-term and indefinite permanent residence pathways for members of the Indonesian diaspora.
Media mentions
Senior Immigration Manager Jonathan Hill notes that tighter UK visa compliance rules and new rating measures create additional challenges for universities.
Video
Partner Diana Quintas outlines key early career visa pathways and practical considerations for employers and graduates navigating entry-level immigration options.
Fragomen news
The Montreal office has added Partner Julie Lessard and Counsel Elsa Agostinho and Sophia Khanzadian to strengthen its immigration services.
Blog post
Destination Services Director Christine Sperr examines how housing market reforms, rent stabilization measures and cost-of-living dynamics in Saudi Arabia are influencing workforce mobility, compensation planning and long-term settlement strategies under Vision 2030.
Blog post
Manager Dr Adela Schmidt and Senior Associate Isabel Schnitzler analyse the European Commission’s infringement proceedings against Germany concerning its Vander Elst visa requirements for third-country nationals providing short-term cross-border services and explain why current compliance obligations remain unchanged.
Blog post
Latin America & the Caribbean Managing Partner Leonor Echeverria, Senior Associates Sarah Blackmore and Sonya Cole and Senior Regional Knowledge Manager Laura Weingort examine renewed energy interest in Venezuela and outline key immigration pathways, procedural constraints and strategic considerations for compliant talent deployment.
Media mentions
Senior Manager Andreia Ghimis highlights how the EU’s new migration strategy could create opportunities for employers while increasing compliance requirements.
Awards
Partner Julia Onslow-Cole is recognised in the Spears 500 guide to leading private client advisers, reflecting her experience advising high-net-worth individuals, families and global businesses on complex UK and European immigration and mobility strategies.
Media mentions
Partner Abeer Al Husseini discusses increased scrutiny of Saudi business visas in AGBI, highlighting stricter review of short-term entry used for operational work and the implications for regional employers.
Awards
Australia and New Zealand Managing Partner Teresa Liu, Partner Charles Johanes, Practice Leaders Hedvika and Leader Ben Lear and Senior Associate Hannah Scanlan are recognized in the 2026 edition of Doyle’s Guide as leading immigration practitioners in Australia.
Awards
Fragomen is ranked Band 1 for Immigration: Business in the Chambers Global 2026 Guide, marking two decades of recognition since 2006. The firm is also the only firm ranked Band 1 in the Global: Multi-Jurisdictional Immigration category and receives additional individual recognitions in the USA: Business Immigration rankings.
Blog post
Senior Business Immigration Consultant Ryaihanny Sahrom and Business Immigration Consultant II Fahimah Muhammad examine Indonesia’s newly launched Global Citizenship of Indonesia (GCI) program and its introduction of long-term and indefinite permanent residence pathways for members of the Indonesian diaspora.
Media mentions
Senior Immigration Manager Jonathan Hill notes that tighter UK visa compliance rules and new rating measures create additional challenges for universities.
Video
Partner Diana Quintas outlines key early career visa pathways and practical considerations for employers and graduates navigating entry-level immigration options.
Fragomen news
The Montreal office has added Partner Julie Lessard and Counsel Elsa Agostinho and Sophia Khanzadian to strengthen its immigration services.
Blog post
Destination Services Director Christine Sperr examines how housing market reforms, rent stabilization measures and cost-of-living dynamics in Saudi Arabia are influencing workforce mobility, compensation planning and long-term settlement strategies under Vision 2030.
Blog post
Manager Dr Adela Schmidt and Senior Associate Isabel Schnitzler analyse the European Commission’s infringement proceedings against Germany concerning its Vander Elst visa requirements for third-country nationals providing short-term cross-border services and explain why current compliance obligations remain unchanged.
Blog post
Latin America & the Caribbean Managing Partner Leonor Echeverria, Senior Associates Sarah Blackmore and Sonya Cole and Senior Regional Knowledge Manager Laura Weingort examine renewed energy interest in Venezuela and outline key immigration pathways, procedural constraints and strategic considerations for compliant talent deployment.
Media mentions
Senior Manager Andreia Ghimis highlights how the EU’s new migration strategy could create opportunities for employers while increasing compliance requirements.
Awards
Partner Julia Onslow-Cole is recognised in the Spears 500 guide to leading private client advisers, reflecting her experience advising high-net-worth individuals, families and global businesses on complex UK and European immigration and mobility strategies.
Media mentions
Partner Abeer Al Husseini discusses increased scrutiny of Saudi business visas in AGBI, highlighting stricter review of short-term entry used for operational work and the implications for regional employers.
Awards
Australia and New Zealand Managing Partner Teresa Liu, Partner Charles Johanes, Practice Leaders Hedvika and Leader Ben Lear and Senior Associate Hannah Scanlan are recognized in the 2026 edition of Doyle’s Guide as leading immigration practitioners in Australia.
Awards
Fragomen is ranked Band 1 for Immigration: Business in the Chambers Global 2026 Guide, marking two decades of recognition since 2006. The firm is also the only firm ranked Band 1 in the Global: Multi-Jurisdictional Immigration category and receives additional individual recognitions in the USA: Business Immigration rankings.
