The Road Vehicles (Authorised Weight) Regulations 1998
These Regulations make new provision for the weights of wheeled motor vehicles and trailers which fall within category M2, M3, N2, N3, O3 or O4 of the vehicle categories defined in Annex II of Council Directive 70/156/EEC as amended. They do not apply to vehicle combinations that meet the requirements for combined transport in Schedule 11A to the Motor Vehicles (Construction and Use) Regulations 1986.