not necessary.$ _$ u( Z* S6 _( ]$ O! R/ W
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. K2 A# m+ ~. A2 } ( {$ F9 D- J4 [( K, cyou need valid visa and utility bill that indicate you are living in USA. 0 a a. L; \' F; C