USA Visitor Visa is a tourist visa to the United States of America. It is also known as B/B2 Visa. It is a non-immigrant visa issued to people entering the US temporarily for pleasure, tourism, or medical treatment. A person, who wants to visit USA for tourism, visiting with family and friends, attending special events like family functions and ceremonies, or for medical treatment may qualify for and can apply for the Visitor Visa.
Getting a visitor visa to USA is subject to approval. Each applicant must have a valid passport, submit the application form, pay the fee, and appear for the visitor visa interview at the nearest applicable US consulate in their country.