Liberals kick-start trade pact challenge to U.S. duties slapped on softwood lumber

The federal Liberals have put the White House on notice that Canada will officially challenge the legality of an American decision to hike duties on softwood lumber heading south of the border.

The government is filing the grievance under the recently renewed North American free trade pact.

Trade Minister Mary Ng says in a statement that she expects Canada to be successful, as it has been in previous challenges to what she calls unwarranted duties on Canadian lumber.

She adds that the extra costs are likely to hit American homebuyers and homeowners hardest, saying the duties are also a tax on U.S. consumers that will raise construction and renovation costs.

Late last month, the U.S. government nearly doubled the tariffs on Canadian softwood lumber as part of a long-running dispute that stems from the U.S. industry's belief that their northern counterparts get help from the federal government.