Several Environmental and Indigenous groups have filed lawsuits against the federal government in the aftermath of its decision to approve the Trans Mountain pipeline. Legal challenges have been filled by the Tsleil-Waututh Nation, Squamish Nation, Ts’elxweyeqw tribes, Shxw’owhamel Nation, Coldwater Indian Band and Stk’emlupsemc te Secwepemc Nation. The legal filings from the First Nations argues there were constitutional violations, primarily around the failure to satisfy the duty to consult, accommodate and seek consent from First Nations. The lawsuits also allege regulatory legal errors were made by the National Energy Board. First Nations communities are divided on the project. There are two groups led by Indigenous communities that want to purchase and operate the existing pipeline from the federal government, with the intention to expand it. Other First Nations are arguing that the pipeline would destroy significant spiritual and historic sites as well as important aquifers. Ecojustice has also launched a legal challenge on behalf of Raincoast Conservation Foundation and Living Oceans Society who argue that the approval will negatively impact many species at risk.