The Standing Rock Sioux Tribe has won a major legal victory in federal court on Wednesday, which may have the power to force the shutdown of the $3.8 billion Dakota Access pipeline. On Wednesday, District Judge James Boasberg ruled that the Trump administration failed to carry out an adequate environmental review of the pipeline, after President Trump ordered the Army Corps to fast-track and greenlight its approval.

Washington, D.C., District Judge Boasberg has requested additional briefings next week on whether the pipeline should be shut off until the completion of a full review of a potential oil spill’s impacts on fishing and hunting rights, as well as environmental justice.