As mentioned in FAL Bulletin No 167, "trade facilitation" is still a relatively imprecise concept covering a wide variety of topics, such as: customs issues; technical norms relating to quality standars and control of plant and normal diseases; transport; commercial information interchange and a variety of trade-related services.This broad scope means that an analysis of trade facilitation at the level of an individual country or trade agreement, entails obtaining data froma variety of public bodies, since they are not centralized. Studying trade facilitation in Mercosur is quite complex, given its considerable organizational decentralization and the geographic dispersal of the operations of its different bodies.This edition of our Bulletin covers progress achieved on customs issues and on technical standards and quality control.