European Union Categories of land vehicles for regulatory purposes.

§ Category Description
2.1 L Motor vehicles with less than four wheels
2.1.1 L1 A two-wheeled vehicle with an engine cylinder capacity in the case of a thermic engine not exceeding 50 cm³ and whatever the means of propulsion a maximum design speed not exceeding 50 km/h.
2.1.2 L2 A three-wheeled vehicle of any wheel arrangement with an engine cylinder capacity in the case of a thermic engine not exceeding 50 cm³ and whatever the means of propulsion a maximum design speed not exceeding 50 km/h.
2.1.3 L3 A two-wheeled vehicle with an engine cylinder capacity in the case of a thermic engine exceeding 50 cm³ or whatever the means of propulsion a maximum design speed exceeding 50 km/h.
2.1.4 L4 A vehicle with three wheels asymmetrically arranged in relation to the longitudinal median plane with an engine cylinder capacity in the case of a thermic engine exceeding 50 cm³ or whatever the means of propulsion a maximum design speed exceeding 50 km/h (motor cycles with sidecars).
2.1.5 L5 A vehicle with three wheels symmetrically arranged in relation to the longitudinal median plane with an engine cylinder capacity in the case of a thermic engine exceeding 50 cm³ or whatever the means of propulsion a maximum design speed exceeding 50 km/h.
2.1.6 L6 A vehicle with four wheels whose unladen mass is not more than 350 kg, not including the mass of the batteries in case of electric vehicles, whose maximum design speed is not more than 45 km/h, and whose engine cylinder capacity does not exceed 50 cm³ for spark (positive) ignition engines, or whose maximum net power output does not exceed 4 kW in the case of other internal combustion engines, or whose maximum continuous rated power does not exceed 4 kW in the case of electric engines.
2.1.7 L7 A vehicle with four wheels, other than that classified for the category L6, whose unladen mass is not more than 400 kg (550 kg for vehicles intended for carrying goods), not including the mass of batteries in the case of electric vehicles and whose maximum continuous rated power does not exceed 15 kW.
2.2 M Power-driven vehicles having at least four wheels and used for the carriage of passengers
2.2.1 M1 Vehicles used for the carriage of passengers and comprising not more than eight seats in addition to the driver's seat. (Passenger car)
2.2.2 M2 Vehicles used for the carriage of passengers, comprising more than eight seats in addition to the driver's seat, and having a maximum mass not exceeding 5 tons. (Bus)
2.2.3 M3 Vehicles used for the carriage of passengers, comprising more than eight seats in addition to the driver's seat, and having a maximum mass exceeding 5 tons. (Bus)
2.3 N Power-driven vehicles having at least four wheels and used for the carriage of goods
2.3.1 N1 Vehicles used for the carriage of goods and having a maximum mass not exceeding 3.5 tons. (Pick-up Truck)
2.3.2 N2 Vehicles used for the carriage of goods and having a maximum mass exceeding 3.5 tons but not exceeding 12 tons. (Commercial Truck)
2.3.3 N3 Vehicles used for the carriage of goods and having a maximum mass exceeding 12 tons. (Commercial Truck)
2.4 O >Trailers (including semi–trailers)
2.4.1 O1 >Trailers with a maximum mass not exceeding 0.75 tons.
2.4.2 O2 >Trailers with a maximum mass exceeding 0.75 tons, but not exceeding 3.5 tons.
2.4.3 O3 >Trailers with a maximum mass exceeding 3.5 tons, but not exceeding 10 tons.
2.4.4 O4 >Trailers with a maximum mass exceeding 10 tons.
2.5   Special purpose vehicle
2.5.1   Motor caravan, also Campervan, Motorhome
2.5.2   Armored car (VIP), Armored car (valuables)
2.5.3   Ambulance
2.5.4   Hearse
2.6 T Agricultural and Forestry tractors
2.7   Non-road mobile machinery
2.8 G Off-road vehicles
2.9.2   Special purpose vehicles (M1)
2.9.2.1 SA Motor caravan: see paragraph 2.5.1.
2.9.2.2 SA Armoured vehicle: see paragraph 2.5.2.
2.9.2.3 SA Ambulance: see paragraph 2.5.3.
2.9.2.4 SA >Hearse: see paragraph 2.5.4.