not necessary.4 N" O# ^9 q* v4 U1 m( e
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. 9 j+ c* L b n4 v
/ {7 b3 W5 E+ B( Oyou need valid visa and utility bill that indicate you are living in USA. d, j+ I4 p4 y- g4 I& v0 W