The North American Free Trade Agreement (NAFTA) of 1993 created the TN professional visa for Canadian and Mexican nationals. The TN Visa allows qualifying Canadian and Mexican citizens to temporarily work in U.S. in a NAFTA-approved professional occupation under certain conditions. TN status may be renewed annually, as long as the applicant can demonstrate that the proposed employment continues to be temporary. A spouse or child of TN visa holder is issued a TD visa, and may not work, but are allowed to attend school.
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