not necessary.3 C' F6 ~6 M. m% b8 Q
legally, you may use Canadian driving license for 3 months. but usually, if you stay for less than one year. nobody go for change it. ! W& v5 [; w9 x% K8 H4 e
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you need valid visa and utility bill that indicate you are living in USA. , @, l5 G7 c2 y7 _* @2 U