not necessary.1 U2 L# R2 V- X
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. 5 r, i: w' D6 o& j* b& c( D4 f' T, `6 G X8 o9 U
you need valid visa and utility bill that indicate you are living in USA.0 d& y7 z$ T5 v7 Z