The position to be filled must qualify as a professional-level job defined as requiring a baccalaureate degree or licensure demonstrating status as a professional in field. Unless otherwise specified, a bachelor's degree of three or four years is the minimum requirement for professionals. Either Canadian or a U.S. Company may employ a TN Visa holder. The employer may be paid in US dollars. Duration of Visa Increments of one year - Maximum.
Canadian citizens have two options.
First , they may have their employer file an I-129 form at the closest regional INS office. This option does not require leaving the U.S. Second, Canadians may return to Canada to re-apply at the port of entry with the same documentation that is required for an original application. Mexican citizens must have their employers renew their labor certification and file another I-129 with their regional INS office in order to extend their stay. At this time, there is no limit on the number of times an individual can renew a TN visa. The TN is, however, a temporary visa.