EU Approval - crucial for the release onto the market of farm and forestry tractors - can concern either the tractor as a whole (type approval) or its components (partial approval). The regulations relating to partial or type EU approval are shown in the particular directives.
The new 2003/37/CE Directive, the framework for CE approval, defines the possibility of using the following as alternatives to the particular directives: the basic directives for motor vehicles; the UNECE regulations; the OECD codes. Directive 2003/37/CE also prescribes extra categories of vehicles for which there are currently no particular directives and which are not, as such, currently subject to EU approval.
Vehicles that have achieved EU approval are however required to undergo further tests and checks in order to ensure road traffic safety. This operation is referred to as 'transfer of EU approval'.