A Green Card allows individuals to live and work permanently in the United States and is required to apply for citizenship. To be eligible, applicants cannot have security, health, or criminal issues and must fit into an immigrant category outlined by law. Green Cards are obtained either in the US or abroad and are often given to those with family in the US, job skills needed by employers, or those who are refugees, investors, or highly educated. Holding a Green Card provides social benefits, the ability to apply for citizenship, freedom of movement, in-state status, and the option to sponsor relatives for immigration.