not necessary./ ~/ w0 Q9 m; g$ w' j N
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. 6 G( H z& w* P g$ x+ z5 Q
/ O# `# i6 m6 Dyou need valid visa and utility bill that indicate you are living in USA. 1 ~3 C& Q4 ~; {. L. D6 m4 m