Main Article: Immigration
Main Article: Non-Immigrant visa types
A B visa is granted to foreign citizens seeking entry for a temporary period. B-1 visas are granted for business purposes and B-2 visas are granted for tourism or other non-business purposes. In practice, the visas are typically combined to a B1/B2 visa.
B visas are typically granted for a 3-6 month stay and allows for either one or multiple entries into the United States. They can be extended for another 6 months.