General Agreement on Trade in Services
The General Agreement on Trade in Services GATS is a treaty of a World Trade Organization WTO which entered into force in January 1995 as a sum of the Uruguay Round negotiations. The treaty was created to move the multilateral trading system to service sector, in the same way the General Agreement on Tariffs together with Trade GATT lets such a system for merchandise trade.
All members of the WTO are parties to the GATS. The basic WTO principle of most favoured nation MFN applies to GATS as well. However, upon accession, members may introduce temporary exemptions to this rule.