not necessary. 8 j1 d" V( t+ K" \9 v# Qlegally, 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& a* B$ h4 B t. i% m' O2 A / W) o4 `4 U7 | P* Q# n( o( ^you need valid visa and utility bill that indicate you are living in USA. + ~" w2 x7 U$ G7 m) x1 X# ?# h1 C6 `* i