Trans Mountain Canada Inc.

Supreme Court of Canada rules in favour of the Trans Mountain Expansion Project


Trans Mountain Canada Inc.




Corporate and Commercial Litigation

Date Closed

January 2020



Lead Office



On Thursday, January 16, 2020 Osler lawyers, Maureen Killoran Q.C, Olivia Dixon, and Sean Sutherland appeared before the Supreme Court of Canada on the “BC Reference Case” on behalf of both Trans Mountain and Enbridge to argue that proposed amendments to the B.C. Environmental Management Act are unconstitutional and specifically designed to target the Trans Mountain Pipeline Expansion Project. The BC legislation sought to regulate the shipments of “heavy oil” on federally regulated pipelines (and railways) through the Province of British Columbia. 

After a full day hearing, it took the Supreme Court of Canada less than 30 minutes to return a unanimous result in favour of Trans Mountain and all parties that intervened in opposition to the BC Legislation.