not necessary.# y& r0 a, ^8 c2 f
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. ' W" R4 n& s! {% M: i w( m; }) L' b( H9 E- U
you need valid visa and utility bill that indicate you are living in USA. + y1 r0 v/ w7 W6 R