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Do I need to appear at the CASC for biometrics in the USA?

Biometrics for the EB-4 visa varies depending on the location: outside the US, it is generally not at the CASC; inside, USCIS schedules it at the Application Support Center, with mandatory attendance.

Written by

Victoria Harper

Editor-in-Chief

Updated on October 29, 2025
2 min read
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I will explain it simply. The procedure for collecting biometrics can vary depending on the location and the type of processing for the EB-4 visa.

If you are undergoing consular processing (outside the United States, for example, at the US embassy or consulate), generally, you do not attend a CASC (Customer Application Support Center) for biometric data collection in the US. Usually, in this scenario, other instructions will be provided when scheduling your visa procedure.

On the other hand, if you are already in the United States and are doing the adjustment of status, USCIS (United States Citizenship and Immigration Services) usually schedules biometric collection at a designated center called the Application Support Center – which can be confused with the term CASC. In this situation, attendance is mandatory and you will receive an official letter with the date, time, and location of your collection.

Regardless of the chosen path, it is essential to follow all instructions provided by US immigration authorities and pay special attention to the scheduled dates and locations. Always seek information from official sources and be cautious of companies or offers promising guaranteed results or facilities without backing. Maintaining compliance with immigration laws and official rules is the best way to avoid problems and surprises during your process.

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Victoria Harper

Editor-in-Chief

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Leading journalism and editorial content at Visto n’ Visa, Victoria helps make immigration topics clear, trustworthy, and easy to understand. Her focus is on delivering useful, human, and relevant content for people exploring new paths abroad.

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Do I need to appear at the CASC for biometrics in the USA?

Biometrics for the EB-4 visa varies depending on the location: outside the US, it is generally not at the CASC; inside, USCIS schedules it at the Application Support Center, with mandatory attendance.

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