Saskatchewan, Ottawa Carbon Tax Case ‘Monumental’ for Constitution: Expert

Prime Minister Justin Trudeau speaks to the media and students regarding his government's new federally imposed carbon tax at Humber College in Toronto on Oct. 23, 2018. Saskatchewan and Ottawa will head to court over the constitutionality of a federally imposed carbon tax. The Canadian Press/Nathan Denette

REGINA—Legal experts, government officials, and industry leaders will all watch this week as Saskatchewan and Ottawa head to court over the constitutionality of a federally imposed carbon tax.

The federal government is set to impose a carbon levy on provinces that do not have one of their own starting in April.