1、唯一代表为多个非欧盟制造商履行注册责任时吨位计算和信息要求的规定The only representative can represent one or several“non-Community manufacturers”. As he is fulfilling the registration obligations of importers, the tonnage of the substance to be registered is the total of the tonnages of the same substance covered by the contractual agreements with him and all“non-Community manufacturers”represented by him. The information requirement for the registration dossier shall be determined according to this total tonnage.