Reflections on the Interpretation and Application of Article 121(3) in the South China Sea Arbitration (Merits)

The 2016 South China Sea Arbitration Award provided a detailed review of the interpretation of Article 121(3) of the U.N. Convention on the Law of the Sea. According to the Tribunal, Article 121(3) performs a preventive function by disabling tiny features from unfairly generating enormous entitlements to maritime space that does not serve the local population. This provision also contributes to safeguarding of the Common Heritage of Mankind. The Tribunal's interpretation seems to reflect development of the law of the sea toward protection of the common interests of the international community. However, since the Tribunal's interpretation is not anchored in state practice and the jurisprudence, whether the interpretation can be generalized needs careful consideration.