1.This Regulation shall apply to agricultural and forestry vehicles, as described in Article 4, designed and constructed in one or more stages, and to systems, components and separate technical units, as well as parts and equipment, designed and constructed for such vehicles.
Specifically, this Regulation shall apply to the following vehicles:
(a)tractors (categories T and C);
(b)trailers (category R); and
(c)interchangeable towed equipment (category S).
[F12. This Regulation shall not apply to interchangeable equipment that is fully raised from the ground or that cannot articulate around a vertical axis when the vehicle to which it is attached is in use on a road.]
3.For the following vehicles, the manufacturer may choose whether to apply for approval under this Regulation or whether to comply with the relevant national requirements:
(a)trailers (category R) and interchangeable towed equipment (category S);
(b)track-laying tractors (category C);
(c)special purpose wheeled tractors (categories T4.1 and T4.2).