[Fozzybear]

Originally Posted by GWN7

Stick your temp registration (issued from the province where you live) in the window and drive off home.

California Department of Motor Vehicles

Ontario will not issue a temp permit without the RIV form (at least they wouldn't for me) - i.e. until you have it in the country, however, they will honour any temp permit acquired by the state in question for 45 days.