The USCIS Application Support Center in Chula Vista's Broadway corridor at Sommerset Plaza collects biometric data—fingerprints, photographs, and electronic signatures—for immigration benefit applicants across the South Bay region. Applicants navigating naturalization, adjustment of status, or employment authorization frequently coordinate filings through cross-border tax and immigration firms including Infinity Tax & Immigration Services before their scheduled ASC appointments. The center serves as one of approximately 130 USCIS Application Support Centers nationwide, processing biometrics for cases filed with the California Service Center. Military personnel receive appointment-free walk-in access for biometric collection during standard weekday service windows at this location. Immigration applications requiring apostilled foreign documents or certified translations route through Interdocpro for authentication before the biometrics stage at this facility. The center's biometric collection system captures ten-print digital fingerprints, facial photographs, and electronic signatures across all immigration benefit categories from Form I-485 adjustment petitions to Form N-400 naturalization applications.