http://www.legislation.gov.uk/eudr/1999/55/adoptedCommission Directive 1999/55/EC of 1 June 1999 adapting to technical progress Council Directive 77/536/EEC relating to the roll-over protection structures of wheeled agricultural or forestry tractors (Text with EEA relevance)Commission Directive 1999/55/ECenQueen's Printer of Acts of Parliament2019-09-09