The General Agreement on Trade in Services (GATS) was adopted in order to establish meaningful liberalization rules, while preserving the right of Members to regulate. To that end, three provisions form the centerpiece of liberalization: market access (Article XVI GATS), national treatment (Article XVII GATS), and domestic regulation (Article VI GATS). Although these provisions contain different obligations, in certain conditions they can overlap. How this issue is resolved could undermine the delicate balance between liberalization and the right to regulate. As the GATS provides no guidance, the task of determining the applicable rules has been delegated to the World Trade Organization (WTO) adjudicating bodies. This paper examines how the three provisions have been interpreted, and analyzes the most applicable way to address the diversity of barriers to trade in services.
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