The back-to-the-drawing board environmental review of the Trans Mountain pipeline expansion project will assess the impact of increased oil tanker traffic out to about 12 nautical miles from the B.C. coastline.

The Trudeau government says it won't appeal an Aug. 30 Federal Court of Appeal ruling that quashed its approval of the Trans Mountain pipeline expansion project, instead choosing to appoint a former Supreme Court justice to oversee new Indigenous consultations.

Alberta Premier Rachel Notley says she will go up against controversial anti-pipeline activist Tzeporah Berman in duelling speeches next month.

The president and CEO of Trans Mountain Corp. says its sidelined pipeline project could be back on track by next year under a new National Energy Board hearing schedule, setting it up for a possible 2022 opening date.