Changes made by Council Directive 1999/86/EC of 11 November 1999 adapting to technical progress Directive 76/763/EEC on the approximation of the laws of the Member States relating to passenger seats for wheeled agricultural or forestry tractors
EU Directive 1999/86
No changes made by Council Directive 1999/86/EC of 11 November 1999 adapting to technical progress Directive 76/763/EEC on the approximation of the laws of the Member States relating to passenger seats for wheeled agricultural or forestry tractors are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.