not necessary. % j* P: H# S4 s# A. Z Elegally, you may use Canadian driving license for 3 months. but usually, if you stay for less than one year. nobody go for change it. - z6 W' w% U5 @; ~) p+ U {( M h
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you need valid visa and utility bill that indicate you are living in USA.6 `3 h/ R8 C3 F9 |3 b$ o) x