A U.S. visa allows the bearer to apply for entry to the U.S. in a certain classification (e.g. student (F), visitor (B), temporary worker (H)). A visa does not grant the bearer the right to enter the United States. The Department of Homeland Security (DHS), Bureau of Customs and Border Protection (BCBP) immigration inspectors determine admission into, length of stay and conditions of stay in, the U.S. at a port of entry. The information on a nonimmigrant visa only relates to when an individual may apply for entry into the U.S. DHS immigration inspectors will record the terms of your admission on your Arrival/Departure Record (I-94 white or I-94W green) and in your passport.  Getting a visa is normally (but not always) the first step in getting a green card or U.S. citizenship.

There are more than 20 nonimmigrant visa types for people traveling to the United States temporarily. There are many more types of immigrant visas for those coming to live permanently in the United States.  The type of Visa you need is determined by the purpose of your intended travel.

A wallet-sized card showing that a person is a lawful permanent resident (immigrant) in the U.S.  It is also known as a permanent resident card (PRC), an alien registration receipt card and I-551.  Having a green card means that you can permanently work and live in the U.S.  It also means that you can apply for U.S. citizenship.

There are many paths to a green card, but the two most common are a family-based green card and an employment-based green card.  Family-based green cards are available to close relatives and adopted children of U.S. citizens and permanent residents.  Job-based green cards are available to people who meet specific qualifications to work in the United States.

TPS is granted by the Secretary of Homeland Security to eligible nationals of a certain country (or persons without nationality who last habitually lived in that country) who have experienced temporary negative conditions, such as armed conflict, environmental disaster, or extraordinary and temporary conditions, that prevent nationals of the country from returning safely or for the country to handle their return adequately. TPS allows for beneficiaries to remain in the United States and legally work for a set time period until they can safely return home.