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The Dispute Regarding Navigational and Related Rights (Costa Rica v. Nicaragua) concerns the rights of Nicaragua and Costa Rica over part of the San Juan River, located in the territory of the former, but whose right bank and certain navigational rights belong to the latter. In its July 13, 2009 Judgment, the International Court of Justice ("ICJ") made a number of specific rulings regarding the scope of Costa Rica's right to free navigation, Nicaragua's power to regulate that right, and Costa Rican riparians' subsistence fishing rights. Aside from its immediate significance for the litigating parties, the Judgment is noteworthy for its statements on treaty interpretation, international watercourses law, and state responsibility.



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