79/34/ECSC: Decision of the representatives of the Governments of the Member States of the European Coal and Steel Community, meeting within the Council, of 18 December 1978 relating to the Common Customs Tariff nomenclature of the Member States (subheading 73.12 B I) and determining the conditions under which certain ECSC products are eligible upon importation for a favourable tariff arrangement by reason of their end-use.