Bringing Aliens into the United States refers to the process of obtaining a visa for a non-U.S. citizen to enter the country. This is usually done to work, study, or visit, and there are several types of visas that can be used. The most common types of visas for bringing aliens into the United States are the immigrant visa, the temporary visa, and the nonimmigrant visa. Immigrant visas are granted for those who intend to stay permanently in the United States. This type of visa includes family members of U.S. citizens, those receiving employment-based visas, and those with refugee or asylum status. Temporary visas are granted for those who intend to stay in the United States temporarily. This type of visa includes those coming for business or pleasure, and those coming for medical treatment. Nonimmigrant visas are granted to those who intend to stay in the United States for a short period of time. This type of visa includes exchange visitors, tourists, and students. In order to bring an alien into the United States, the person must first apply for a visa, which involves providing documents that prove their identity, purpose for travel, and evidence of financial support. Once the visa is approved, the alien must then go through customs and immigration inspections at the U.S. border. After passing the inspections, the alien will be allowed to enter the country.