A unanimous decision cleared a major legal hurdle for construction to continue on the Trans Mountain pipeline expansion — a move long contested by Indigenous communities.

Rerouting the Trans Mountain pipeline expansion to avoid an aquifer and ensuring another community is immediately notified of a spill are among the steps Ottawa could take to address Indigenous concerns.

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

One First Nation says it now wants to buy in to the project. Others are vowing to double down on opposition.