Anyone watching the US political debates or the news over the last year probably heard much discussion about NAFTA, the North American Free Trade Agreement, which when enacted into law in 1993 created special economic and trade relationships for the United States, Canada, and Mexico. But not many people realize that NATFA created a special nonimmigrant visa category for Canadians and Mexicans to come to the US to work in professional-level jobs. That nonimmigrant visa is called the TN. The “T” and “N” of TN stands for Trade NAFTA. The TN permits qualified Canadian and Mexican citizens with a job offer from a US employer to seek temporary entry into the United States to engage in professional business activities.