回複：pjiang --help! please. TN Visa

I found the following:

Yes, TN status holders may have more than one job, but you must reapply for TN status for the new employer before beginning to work. This can be done by exiting and re-entering the U.S. with documentation that incorporates the additional TN, or if you don’t want to travel, by filing an application with U.S. Citizenship and Immigration Services. Contact the International Scholar Advisor in the Office of International Students and Scholars for more information.