In a significant victory for the hydropower industry, last week the U.S. District Court for the District of Oregon issued an order in Cascadia Wildlands v. EWEB (Case No. 6:25-00446), reaffirming that the U.S. courts of appeals, on review of orders of the Federal Energy Regulatory Commission (FERC), have exclusive jurisdiction over controversies related to fish passage and other environmental measures included in hydropower licenses issued by FERC. This decision adds to precedent making clear that project opponents may not collaterally attack fish passage conditions in FERC licenses via citizen suits filed under the Endangered Species Act (ESA).