not necessary. 3 w% t( H' e2 L7 L/ E, Ulegally, you may use Canadian driving license for 3 months. but usually, if you stay for less than one year. nobody go for change it. " Q& g+ t7 \( e: r& K6 x * b6 H* [4 J; i; X: dyou need valid visa and utility bill that indicate you are living in USA.3 b7 X2 T" H6 x: Y' f