International trade has now entered the new era of GATT 1994 resulting of the Uruguay Round Multilateral Trade Negotiations finally concluded in December 1993. The purpose of revising and converting most of the GATT 1947 Agreements into multilateral trade agreements (by which all WTO Members will be bound), was to strengthen and expand rules, procedures and institutions governing measures that could be used to restrict market access and thus offset part or all of the increased market access contained in the schedules of concessions. Exporting nations, however, will have to ensure that any future interpretations of normative terms defining rules and procedures do not give rise to a growing variety of non-tariff barriers, more particularly SPS and TBT measures. For this purpose, they will be able in last resort, to rely on the new Understanding on Rules and Procedures Governing the Settlement of Disputes which sets out procedures for resolving contentions over the interpretation of countries' obligation under both schedules of concessions and Agreements.