US-Visa is a travel document that allows us to enter the country The United States of America (USA), US-Visas are issued for specific purposes of travel, such as tourism, business, study, employment or to join family. Your reason for travelling to the U.S. will determine which type of visa you should apply for. Visas are also issued for a specific period of time - once a visa expires, we no longer have the legal right to travel to or remain in the U.S.
There are two types of U.S. visas, nonimmigrant and immigrant, and the main difference is the length of time they allow you to stay in the U.S.
Nonimmigrant Visas are issued for temporary stay in the U.S. Nonimmigrant visas are issued to people who live outside the U.S. but who wish to visit the country for different reasons like tourism, business, studying or working. These visas are usually issued for periods between three months and two years and may often be extended.
Immigrant Visas are issued for permanent stay in the U.S. An immigrant visa allows you to travel to the U.S. and once you enter, to legally establish your residence. This means you will officially become a U.S. permanent resident and receive a lawful permanent resident card (green card) in the mail. Permanent residents, also known as green card holders, are allowed to live and work in the U.S. permanently. There are three categories of immigrant visas: family-sponsored, employment-based and special immigrant.