5.Categories O1 and O2 U.K.
5.1.Type of vehicleU.K.
5.1.1.A ‘type of vehicle’ shall consist of vehicles that have the following features in common:U.K.
the manufacturer's company name.
A change in the legal form of ownership of the company does not require that a new approval has to be granted;
the category;
the concept as defined in point 5 of Part C;
the following aspects of construction and design:
the design and construction of the essential constituent elements forming the chassis;
the design and construction of the essential constituent elements forming the body structure in the case of a self-supporting body;
the number of axles.
5.1.2.A type of vehicle shall consist of at least one variant and one version.U.K.
5.2.VariantU.K.
5.2.1.A ‘variant’ within a type of vehicle shall group the vehicles that have the following construction features in common:U.K.
the kind of bodywork as referred to in Appendix 2 (for complete and completed vehicles);
the stage of completion (e.g. complete/incomplete/completed);
the type of braking system (e.g. unbraked/inertia/power);
in the case of multi-stage built vehicles, the manufacturer and the type of the previous stage vehicle.
5.3.VersionU.K.
5.3.1.A ‘version’ within a variant shall group the vehicles that have the following features in common:U.K.
the technically permissible maximum laden mass;
the concept of the suspension (air, steel or rubber suspension, torsion bar or other);
the concept of the drawbar (triangle, tube or other).