Vehicle categories and their applicable framework Directive

Vehicle	Category	Description	EC framework Directive
Passenger cars, buses and coaches	M1, M2, M3	Motor Vehicles with at least four wheels designed and constructed for the carriage of passengers.	2007/46/EC (M1 or M2 / M3)
Commercial vehicles	N1, N2, N3	Motor Vehicles with at least four wheels designed and constructed for the carriage of goods.	2007/46/EC (N1 or N2 / N3)
Trailers	O1, O2, O3, O4	Trailers (including semi-trailers).	2007/46/EC
2 and 3 wheeled vehicles	L1e, L2e, L3e, L4e, L5e, L6e, L7e	Mopeds, motorcycles, motortricycles and quadricycles.	2002/24/EC
Wheeled tractors	T1, T2, T3, T4, T5	Wheeled tractors.	2003/37/EC
Track-laying tractors	C	Track-laying tractors.	2003/37/EC
Agricultural trailers	R1, R2, R3, R4	Agricultural trailers.	2003/37/EC
Interchangeable towed machinery	S1, S2	Interchangeable towed machinery.	2003/37/EC