ISSP: Information for TN Scholars: Requirements for TN1 Status

Proof of Canadian citizenship. Canadian landed immigrants and non-Canadian citizens must apply for H1B status.
Evidence that the intended U.S. employment and the applicant qualify under Schedule 2 of NAFTA. Go to http://www.nafta-sec-alena.org/DefaultSite/index_e.aspx?DetailID=167#Ap1603.D.1 for the "Schedule 2 List of NAFTA Professional Job Series"
Applicant must intend to engage in employment at a professional level. The employment must be prearranged by a U.S. company or institution.
A letter from the U.S. employer detailing the nature of the employment. TN1 status is granted for only one employer at a time for a specific type of work. For multiple employers, multiple TN1 applications must be filed.