not necessary. 3 w+ L: m" p5 o5 Wlegally, you may use Canadian driving license for 3 months. but usually, if you stay for less than one year. nobody go for change it. : i( h3 U+ C* I ' m( c$ d5 ~! J. g( K9 Gyou need valid visa and utility bill that indicate you are living in USA.* ]: Q2 L1 n6 v6 N