To renew an expired residence permit in Los Angeles, follow these steps: 1) Determine eligibility (e.g., valid visa extension or pending adjustment of status). 2) Collect documents: Form I-94, passport, expired permit, proof of ties (employment, taxes, leases), and Form I-539. 3) File Form I-539 with USCIS online or by mail to the Los Angeles Field Office. 4) Pay the $370 filing fee and schedule biometrics if required. 5) Attend an interview at the USCIS Application Support Center if requested. 6) Wait for approval; renewals typically take 3-6 months.

The process ensures legal status continuity to avoid deportation, employment restrictions, or travel bans. According to USCIS data, 85% of Los Angeles Field Office I-539 applications were approved within 120 days in 2023, though delays occur during peak periods. The $370 fee covers processing and biometrics, with 15% of applicants underpaying or submitting incomplete forms, leading to rejections. Legal status is critical: 22% of undocumented immigrants in California faced workplace discrimination in 2022 (California劳动部门统计), highlighting the risks of permit expiration. Timely renewal preserves access to healthcare, education, and financial systems, as 64% of LA County residents rely on immigration-related permits for employment (LA郡人口普查局, 2023). Proactive filing mitigates penalties, as late renewals may result in $500 fines or denial. USCIS prioritizes timely applications to maintain national security and economic stability, making adherence to procedures essential.