By Elizabeth M. Klarin ( December 8, 2025, 2:03 PM EST) -- Many Canadians take for granted the ease with which they can apply for TN (Trade NAFTA) work authorization at a U.S. border or preclearance location. Generally, and for those who qualify, it is a quick and inexpensive way to obtain permission to work for a specific employer or U.S. clients of a Canadian business....