not necessary. % H! |! s, w" slegally, you may use Canadian driving license for 3 months. but usually, if you stay for less than one year. nobody go for change it. ' D e8 c( d5 n & l$ `6 V+ A8 kyou need valid visa and utility bill that indicate you are living in USA. 5 }1 R2 n; `) b) x) d