not necessary. $ C# R3 I V- glegally, you may use Canadian driving license for 3 months. but usually, if you stay for less than one year. nobody go for change it. 0 @# f/ I" O. _" ?% v6 y ; M3 \8 ?, ]2 [: \ @' Myou need valid visa and utility bill that indicate you are living in USA. # ~$ j" x; n* i% `. l