Regulation (EEC) No 1257/75 of the Commission of 14 May 1975 re-establishing the levying of the customs duties on cotton yarn, not put up for retail sale, falling within subheading 55.05 A, originating in Colombia, to which the preferential tariff arrangements set out in Council Regulation (EEC) No 3046/74 of 2 December 1974 apply.