Changes made by Council Directive 89/680/EEC of 21 December 1989 amending directive 77/536/EEC on the approximation of the laws of the member states relating to the roll-over protection structures of wheeled agricultural or forestry tractors
EU Directive 1989/680
No changes made by Council Directive 89/680/EEC of 21 December 1989 amending directive 77/536/EEC on the approximation of the laws of the member states relating to the roll-over protection structures of wheeled agricultural or forestry tractors are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.