Canadian citizens usually do not need a visa to enter US, although TN visa is granted upon request to NAFTA professionals who want to work in US.
Let me translate it into Chinglish
所有跟帖:
• 多謝胡說之。就是說上班的話必須有TN visa. -bluevale- ♀ (0 bytes) () 03/03/2012 postreply 18:30:26