The United States Citizenship and Immigration Service (USCIS) requires taking biometric data from people who submit applications to be residents.
The residence application requires a biometric services appointment, which consists of taking fingerprints, a photograph and a signature. This information is used to verify that the applicant does not have a criminal record or immigration violations that could affect their application.
The biometric information collected, as well as the digital signature are corroborated within the database of the Federal Bureau of Investigation (FBI), and thus determine that the applicant is free of previous accusations and infractions.
As for the appointment, the USCIS is in charge of scheduling it, specifying the time, date and place, which in this case a Application Support Center (ASC), designated by the USCIS. In this sense, applicants in the United States must go to the corresponding ASC and applicants who are abroad must go to the US consulate where they are carrying out the procedure.
To appear for their appointment at the ASC, applicants must bring their notice of appointment (Form I-797C); a photo ID, such as a passport or driver's license; and a copy of the completed application or petition.
Generally, biometric services appointments last 15 to 20 minutes, since they do not involve interviews and the personnel in charge of taking data and fingerprints do not require information about the application.
In the event that the applicant does not appear for the biometric services appointment on the date, time and place indicated, USCIS may reject their application.
However, it is possible to reschedule a biometric services appointment, but the applicant must present a good cause and call the USCIS Contact Center at 800-375-5283 (TTY 800-767-1833) before the appointment date.
Learn more about biometric services at this link: https://www.uscis.gov/es/formularios/guias-para-presentacion-de-formularios/como-prepararse-para-su-cita-de-servicios-biometricos