USA Tourist Visa (USA Visitor Visa) allows you to visit USA either to sightsee or visit family or friends. Visas are granted for up to 10 years depending on applicant's intent, profile & documentation. Visitors are not permitted to work on the USA Tourist Visa. USA Tourist Visa applicants must demonstrate to the consular officer that they have strong ties to their country of residence and must show that they intend to depart the United States after their temporary visit.
A USA Tourist Visa grants you permission to travel to a Port of Entry (airport/seaport) in the United States. When you arrive at your destination Port of Entry, the U.S. Immigration Inspector who processes your entry will determine the length of time that you may remain in the country during this visit. You may travel to the Port of Entry during the validity of your USA Tourist visa up to and including the last day. The visa duration does not determine the length of time that you may remain legally in the United States; only the Immigration Inspector can decide this upon your arrival in the United States.
Generally, a citizen of a foreign country who wishes to enter the United States must first obtain a visa, either a non-immigrant visa for temporary stay, or an immigrant visa for permanent residence. Visitor visas are non-immigrant visas for persons who want to enter the United States temporarily for business (visa category B-1), tourism, pleasure or visiting (visa category B-2), or a combination of both purposes (B-1/B-2).