not necessary. % P$ z' q3 w* `. _& y: b% L7 T* elegally, you may use Canadian driving license for 3 months. but usually, if you stay for less than one year. nobody go for change it. $ V* m' V, s5 E1 W8 ^ 1 Y; p- y: Z0 g$ _ ~you need valid visa and utility bill that indicate you are living in USA.. F6 o0 }# `4 Y/ D5 y$ C