not necessary. & K/ O0 g# @3 V1 w4 r! Rlegally, you may use Canadian driving license for 3 months. but usually, if you stay for less than one year. nobody go for change it. , E+ f C, I4 r9 ^5 v& \ I& _+ ^/ h! S
you need valid visa and utility bill that indicate you are living in USA.. @9 \3 M; B4 y# z3 I