​People are often confused about whether they need a visa to travel to the U.S. By reading this guide, most people would be able to determine whether they need to apply for a visa to lawfully enter the U.S.A. 1. What is a visa? For purposes of entering the U.S.A., a U.S. visa is a stamp that a U.S. Consulate affixes to a page in the passport of a foreign national (i.e. a non-U.S. national). A U.S. visa gives its bearer the right to travel to the U.S.A. and apply for "inspecti