Kinder Morgan Trans Mountain Expansion Project's Westeridge loading dock is seen in Burnaby, B.C., on November 25, 2016. The B.C. government is creating more uncertainty around Kinder Morgan Inc.'s Trans Mountain expansion project with a proposal to restrict any increase in diluted bitumen shipments until it conducts more spill response studies. Provincial Environment Minister George Heyman says there needs to be more confidence in how well oil transporters are prepared to respond and fully mitigate the effects of a potential spill. THE CANADIAN PRESS/Jonathan Hayward