The North American Free Trade Agreement (NAFTA) created special economic and trade relationships for the United States, Canada and Mexico. The TN nonimmigrant classification permits qualified Canadian and Mexican citizens to seek temporary entry into the United States to engage in business activities at a professional level.
Among the types of professionals who are eligible to seek admission as TN nonimmigrants are accountants, engineers, lawyers, pharmacists, scientists, and teachers.
You may be eligible for TN nonimmigrant status, if:
Unlike Mexican citizens, Canadian citizens are generally eligible for admission as nonimmigrants without a visa. The TN category, a nonimmigrant classification, simply reflects this general exemption from the visa requirement. NAFTA governs which evidence is required to prove whether a Canadian or Mexican citizen is a professional in a qualifying profession.