一、引言近年来世界贸易体系已由过去只关注关税和配额这些公开性的贸易壁垒转向更加隐蔽的由法规带来的贸易壁垒。由于法规常常用于保护健康与安全等正当合法的目的 ,这就使得法规性的壁垒往往更难把握。尤其是法规通常笼统地适用于国内厂商和进口商 ,而关税出于保护的目的仅 I. INTRODUCTION In recent years, the world trading system has been shifted from the open trade barriers focusing only on tariffs and quotas in the past to more covert trade barriers caused by laws and regulations. Because laws and regulations are often used for legitimate and legitimate purposes, such as health and safety, regulatory barriers are often harder to grasp. In particular, regulations generally apply generally to domestic manufacturers and importers, and tariffs are for protection purposes only