F4 Visa

The F4 Visa is a U.S. immigration visa that allows adult siblings of U.S. citizens to apply for legal permanent residence (a Green Card). To qualify, the U.S. citizen must be at least 21 years old and can sponsor their brother or sister, who then undergoes processing that may take several years due to high demand. This visa facilitates family reunification by enabling siblings from abroad to join their U.S. relatives permanently, granting them the right to live and work in the United States once approved.