Changes made by Council Directive of 25 June 1979 on the approximation of the laws of the Member States relating to the roll-over protection structures of wheeled agricultural or forestry tractors (static testing) (79/622/EEC)
EU Directive 1979/622
No changes made by Council Directive of 25 June 1979 on the approximation of the laws of the Member States relating to the roll-over protection structures of wheeled agricultural or forestry tractors (static testing) (79/622/EEC) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.