not necessary." ]6 t3 q! B! M. J w$ v
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. * \( h, Z- Y8 t* b$ H k - F( ^4 X0 X# p& b4 @you need valid visa and utility bill that indicate you are living in USA. ' O( q- d4 r- E+ k6 q* p