not necessary.$ v( R& Y+ m4 i( s+ Y+ x& w" 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. , J, X+ h" a2 [! D& H5 G+ P4 n# N6 d0 g& F
you need valid visa and utility bill that indicate you are living in USA. ; B% \9 V' l8 Z. B/ R- G; ]