http://www.legislation.gov.uk/eudr/1989/173/adoptedCouncil Directive 89/173/EEC of 21 December 1988 on the approximation of the laws of the Member States relating to certain components and characteristics of wheeled agricultural or forestry tractors (repealed)Council Directive 89/173/EEC (repealed)enQueen's Printer of Acts of Parliament2019-09-11