Commission Regulation (EEC) No 2689/79 of 29 November 1979 re-establishing the levying of customs duties on yarn of combed sheep' s or lambs' wool (worsted yarn), not put up for retail sale, falling within heading No 53.07 and originating in developing countries, to which the preferential tariff arrangements set out in Council Regulation (EEC) No 1195/79 apply.