March 18, 2019, Vancouver Sun: B.C.’s Court of Appeal is considering a reference case filed by the province that asks if it has jurisdiction to regulate the transport of oil through its territory and restrict bitumen shipments from Alberta.

As quoted in the article: https://vancouversun.com/news/local-news/b-c-argues-it-cannot-stop-trans-mountain-pipeline-but-it-can-protect-environment