Nonimmigrant visas are issued to foreign nationals for business, tourism, and visiting purposes.
These visas do not establish permanent residence. Under U.S. immigration law, approximately 21 visa categories are classified as “temporary workers.” These visas allow people to work in the United States for a specific period of time. The most commonly discussed temporary worker programs are H-1B specialty occupation workers, H-2A agricultural workers, H-2B seasonal workers, and L intracompany transferees. Visitors for business purposes are issued B-1 visas and any other visitors or tourists are issued B-2 visas. Students use F or J visas for entry to attend school or training programs.