The duty to consult mandates that the Crown must consult affected Indigenous parties when Crown action may negatively impact Aboriginal rights or title claims. The Supreme Court of Canada (SCC) has emphasized that the duty should be characterized by honourable dealings and good faith negotiations. This article argues that the concept of throughput legitimacy can help evaluate the Crown's conduct in consultation. By analyzing 131 British Columbia Environmental Assessments (BC EAs), this article finds that the Crown struggles to uphold throughput legitimacy from the perspective of Indigenous peoples, particularly in the areas of transparency, accountability and effectiveness.