Changes made by Council Directive 78/692/EEC of 25 July 1978 amending Directives 66/400/EEC, 66/401/EEC, 66/402/EEC, 66/403/EEC, 68/193/EEC, 69/208/EEC and 70/458/EEC on the marketing of beet seed, fodder plant seed, cereal seed, seed potatoes, material for the vegetative propagation of the vine, seed of oil and fibre plants and vegetable seed
EU Directive 1978/692
The legislation Council Directive 78/692/EEC of 25 July 1978 amending Directives 66/400/EEC, 66/401/EEC, 66/402/EEC, 66/403/EEC, 68/193/EEC, 69/208/EEC and 70/458/EEC on the marketing of beet seed, fodder plant seed, cereal seed, seed potatoes, material for the vegetative propagation of the vine, seed of oil and fibre plants and vegetable seed changes, newest first. Choose one to see each change.
From legislation.gov.uk's record of changes, the official one: see it there.