We know: All About United States Visas
What's a U.S. visa?
If you're a citizen of a foreign country, in most cases you'll need a visa to enter the United States.
A visa doesn't permit entry to the U.S., however. A visa simply indicates that your application has been reviewed by a U.S. consular officer at an American embassy or consulate, and that the officer has determined you're eligible to enter the country for a specific purpose. Consular affairs are the responsibility of the U.S. Department of State.
What does a visa allow me to do?
A visa allows you to travel to the United States as far as the port of entry (airport or land border crossing) and ask the immigration officer to allow you to enter the country. Only the immigration officer has the authority to permit you to enter the United States. He or she decides how long you can stay for any particular visit. Immigration matters are the responsibility of the U.S. Department of Homeland Security.
What kinds of visas are there?
There are two categories of U.S. visas: immigrant and nonimmigrant.
How do I get a U. S. visa?
Recently, the U.S. has updated its visa policies to increase security for citizens and visitors. It will likely take you longer to get a visa than it used to, and you will find that a few new security measures have been put into place.
For details that may apply specifically to your country, see information posted by your nearest consulate or embassy. While individual differences may differ slightly, here are the basic steps you should follow and what you can expect throughout the process.
Basic steps for obtaining a U.S. visa:
When will I get my visa?
There is no guarantee you will be issued a visa, but visas are usually issued within a few weeks of making the application.