13/04/2004 (Agence Europe) - Several regulations of the United Nations Economic Commission for Europe (UN/ECE) were published in the Official Journal L95 of 31 March 2004. These regulations mention the uniform provisions required for type-approval of different kinds of vehicles (mainly motorcycles and mopeds, motor vehicles with handlebars, farm tractors, commercial vehicles, trailers and semi-trailers, private cars equipped with an internal combustion engine).