not necessary. $ ~8 p8 N: J: A, l! b" r; o. 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. A7 b1 v# [- D
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you need valid visa and utility bill that indicate you are living in USA. 6 t3 Z# `. O: F! \