Immigration law covers multiple acts and regulations regarding granting residence to aliens in the United States. The primary aspect of this law is immigration visas. There are visitor visas, student visas, work visas, and so on, which are incorporated for numerous purposes. However, to gain the status of a permanent resident, you mainly need to get a Green Card. You can apply for a diversity visa lottery, family sponsorship, employment, or acquire permission to stay in the USA as a refugee or an asylum seeker. These immigration statuses allow an individual to live and work in the United States of America permanently.