Regulation 4 Maximum authorised weights
Subject to paragraph (2) and regulation 5, no vehicle to which these Regulations apply and which is of a description specified in a Schedule to these Regulations shall be used on a road if–
the weight of the vehicle exceeds the maximum authorised weight for the vehicle determined in accordance with Schedule 1;
where the vehicle is used as part of a vehicle combination, the weight of the combination exceeds the maximum authorised weight for the combination determined in accordance with Schedule 2; or
the axle weight of any axle of the vehicle exceeds the maximum authorised axle weight for that axle determined in accordance with Schedule 3.
A vehicle to which any of the provisions of regulations 75 to 79 of the 1986 Regulations apply, so long as it is so used that those provisions are complied with, shall be taken to comply with these Regulations.