Visa Letter of Invitation
Visas and travel restrictions
If you have questions about visas and other travel restrictions, check with your local U.S. consulate or visit the U.S. Embassy and Consulate home page.
A U.S. visa allows a foreign citizen to travel to a United States port of entry and request admission into the U.S. from a U.S. Immigration Inspector.
The timeframe for visa processing are difficult to predict with accuracy for any individual applicant and could vary significantly by country. Advance planning on the part of travelers is essential to receive a visa in time for proposed travel dates to the United States.
For the 37 countries in the Visa Waiver Program, citizens meeting the visa waiver criteria will not need a visa, but they must have a machine-readable passport. Please refer to U.S. Visitor Visa page for more information on these requirements.
Canadian citizens do not need a visa, but should visit the U.S. Visas page for more information.