When did Canada regulate its margarine colour laws?

Answer 1

In 1950, as a result of a court ruling giving provinces the right to regulate the product, rules were implemented in much of Canada regarding margarine's color, requiring it to be bright yellow or orange in some provinces or colorless in others. By the 1980s, most provinces had lifted the restriction, however, in Ontario it was not legal to sell butter-colored margarine until 1995. Quebec, the last Canadian province to regulate margarine coloring, repealed its law requiring margarine to be colorless in July, 2008.