not necessary. $ g, j3 B2 c& {, H% C$ U7 g% Hlegally, you may use Canadian driving license for 3 months. but usually, if you stay for less than one year. nobody go for change it. % D' g; x. A; U) p: {5 a # M# O* S+ G3 {5 P/ Eyou need valid visa and utility bill that indicate you are living in USA. 2 m. R# G8 A4 a0 V" B( o6 X