The pipeline remained shut down Sunday, amid cleanup operations after an oil spill at the Sumas Pump Station in Abbotsford.

The court found B.C.'s approval of the certificate was based on the National Energy Board's original report, which was later quashed in federal court

The judge ruled that B.C. should have filed the challenge in the Federal Court. B.C. has, in fact, filed a mirror challenge in that court.

"I heard you. I hear you today, I understand your concerns," Trudeau replied.

The federal government argues B.C.'s proposed legislation must be struck down because they would give the province a "veto" over pipeline projects.

The Trans Mountain Pipeline expansion may be on pause for now, but that isn't slowing down protesters.

Business groups across B.C. say the court's decision will cost jobs and scare off international investment.

Burnaby argues that the pipeline company had intentionally routed the line through parks and city greenways.

Both provinces can make laws about what goes in the pipes, but not if it's meant to target someone else.