not necessary. ; S; b3 @! P. \& r% Qlegally, you may use Canadian driving license for 3 months. but usually, if you stay for less than one year. nobody go for change it. / [5 A; C/ [6 Y& F8 \# P+ j5 q7 p* L
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you need valid visa and utility bill that indicate you are living in USA.; }/ e: i$ Q6 F3 x( m9 q