Trade NAFTA Professional (TN)
Pursuant to the North American Free Trade Agreement (NAFTA), the nonimmigrant TN visa allows citizens of Canada and Mexico, who work in certain professions, to work in the U.S. See Visas for Canadian and Mexican NAFTA Professional Workers.
Process. TN classification is advantageous in that there is no quota, and it requires no prior application with the USCIS. To be eligible for the TN, the Canadian or Mexican citizen must have the degree, experience or licensing requirements designated for each profession.
Canadian nationals may apply for the TN directly at any port of entry; Mexican nationals must apply at a U.S. embassy in Mexico. Citizens of both countries must maintain a home-country residence that they have no intention of abandoning.