Changes to Directive 2009/144/EC of the European Parliament and of the Council of 30 November 2009 on certain components and characteristics of wheeled agricultural or forestry tractors (codified version)
EU Directive 2009/144
Made by Commission Directive 2010/62/EU of 8 September 2010 amending, for the purpose of adapting their technical provisions, Council Directives 80/720/EEC and 86/297/EEC and Directives 2003/37/EC, 2009/60/EC and 2009/144/EC of the European Parliament and of the Council relating to the type-approval of agricultural or forestry tractors
From legislation.gov.uk's record of changes, the official one: see it there.