Dispute Over the Status and Use of the Waters of the Silala (Chile v. Bol.) (I.C.J.)

On December 1, 2022, the International Court of Justice (ICJ) rendered its judgment in the Dispute Concerning the Status and Use of the Waters of the Silala (Chile v. Bolivia). There is no basin agreement governing the Silala, and Chile and Bolivia have ratified neither the 1997 Convention on the Law of Non-Navigational Uses of International Watercourses nor the 1992 Convention on the Protection and Use of Transboundary Watercourses and International Lakes. In the absence of a treaty regime applicable to the waters of the Silala River, the Court had the opportunity in this case to consider the legal framework applicable to international watercourses under customary international law.