not necessary., \$ h' G1 l' ?7 d
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. 1 l: s/ P- |/ S6 L
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you need valid visa and utility bill that indicate you are living in USA. 9 S2 M$ w0 }* U( t! z. X3 r5 N g& c