Visa Lawyer Blog
The following is a brief update regarding the period of admission allowed under the TN visa and how is it determined by CBP officers.
The North American Free Trade Agreement (NAFTA) allows certain Canadian and Mexican professionals to qualify for TN nonimmigrant classification in order to provide professional services in the United States.
A citizen of Canada may apply for TN classification concurrently with an application for admission at a U.S. Class A port-of-entry, at a U.S. airport handling international traffic, or at a U.S. pre-clearance/pre-flight station. It is not necessary for a citizen of Canada to first apply for a TN visa at a U.S. consulate outside the United States.