Entering the United States
A visa allows a foreign citizen to travel to a U.S. port-of-entry (generally an airport) and request permission to enter the United States. A visa does not guarantee entry into the United States. Canadian citizens do not generally require a TN visa; therefore, they apply for admission as a NAFTA Professional at the port-of-entry. The Department of Homeland Security (DHS), U.S. Customs and Border Protection (CBP) officials at the port-of-entry have authority to permit or deny admission to the United States. If you are allowed to enter the United States, the CBP official will provide an admission stamp or paper Form I-94, Arrival/Departure Record. Learn more about the admissions record process on the CBP webpage.
Learn about admissions and entry requirements, as well as restrictions about bringing food, agricultural products, and other restricted/prohibited goods, by reviewing the CBP website under International Visitors and Clearing CBP.