How Many Times can a Mexican or Canadian Citizen Apply for TN status?
There is no limit on the number of times a person can apply for a TN visa or seek admission in TN status. However, at some point an officer may question whether the TN applicant's intent is truly "temporary." Temporary entry is defined under NAFTA as entry without the intent to establish permanent residence. Thus, the applicant must satisfy the officer that his professional work assignment in the U.S. will end at a prescribed time and that he will depart when the assignment is completed.