citizens are entitled to work authorizations in over 60 professional
occupations. The work authorizations are valid for up to three years
and can be renewed indefinitely under current regulations.
The employer can be either U.S. based or a Canadian company that requires
an employee to work temporarily in the United States.
A summary of TN application procedures is available on the U.S. government web site USCIS.gov under the heading working in the US, Temorary Workers, TN NAFTA professionals.
A listing of NAFTA professional categories is found at the U.S. Code of Federal Regulations, 8 CFR 214.6.
Processing of TN work authorizations can be done at a land Border, a Canadian international airport or by mail with the U.S. government Vermont Service Center.