Changes to Council Directive 64/54/EEC of 5 November 1963 on the approximation of the laws of the Member States concerning the preservatives authorized for use in foodstuffs intended for human consumption
EU Directive 1964/54
Made by Council Directive 78/145/EEC of 30 January 1978 amending for the 13th time Directive 64/54/EEC on the approximation of the laws of the Member States concerning the preservatives authorized for use in foodstuffs intended for human consumption
From legislation.gov.uk's record of changes, the official one: see it there.