Changes made by Council Directive of 25 June 1974 on the approximation of the laws of the Member States relating to the field of vision and windscreen wipers for wheeled agricultural or forestry tractors (74/347/EEC)
EU Directive 1974/347
No changes made by Council Directive of 25 June 1974 on the approximation of the laws of the Member States relating to the field of vision and windscreen wipers for wheeled agricultural or forestry tractors (74/347/EEC) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.