not necessary. 7 {9 O+ h) Q; D: `( A; ~+ l+ Jlegally, 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 q4 v9 d1 p. g5 A2 |8 E 0 c/ b+ ~* r: k- c: n1 wyou need valid visa and utility bill that indicate you are living in USA. n+ h/ k( L1 Z9 u