Transport Canada says new cars and small trucks will have to be equipped with rear-view camera systems starting in May 2018.
The new regulations have been formally posted in the Canada Gazette for a 75-day comment period.
The requirement for back-up visibility brings Canadian standards in line with those in the United States.
The department says it's a safety measure because children, disabled persons, the elderly and others are vulnerable to back-up mishaps.
It estimates that such accidents killed 27 people and injured more than 1,500 from 2004 to 2009.
The new requirement applies to new light vehicles, including passenger cars, light trucks, three-wheelers and small vans and buses.