The Road Vehicles (Construction and Use) Regulations 1986

81.  For the purposes of this regulation, regulation 82 and Schedule 12—

(a) “lateral projection”, in relation to a load carried by a vehicle, means that part of the load which extends beyond a side of the vehicle;

(b) the width of any lateral projection shall be measured between longitudinal planes passing through the extreme projecting point of the vehicle on that side on which the projection lies and that part of the projection furthest from that point;

(c) references to a special appliance or apparatus, in relation to a vehicle, are references to any crane or other special appliance or apparatus fitted to the vehicle which is a permanent or essentially permanent fixture;

(d) “forward projection” and “rearward projection”—

(i) in relation to a load carried in such a manner that its weight rests on only one vehicle, mean respectively that part of the load which extends beyond the foremost point of the vehicle and that part which extends beyond the rearmost point of the vehicle;

  

(ii) in relation to a load carried in such a manner that part of its weight rests on more than one vehicle, mean respectively that part of the load which extends beyond the foremost point of the foremost vehicle by which the load is carried except where the context otherwise requires and that part of the load which extends beyond the rearmost point of the rearmost vehicle by which the load is carried; and

  

(iii) in relation to any special appliance or apparatus, mean respectively that part of the appliance or apparatus which, if it were deemed to be a load carried by the vehicle, would be a part of a load extending beyond the foremost point of the vehicle and that part which would be a part of a load extending beyond the rearmost point of the vehicle,

and references in regulation 82 and Schedule 12 to a forward projection or to a rearward projection in relation to a vehicle shall be construed accordingly;

(e) the length of any forward projection or of any rearward projection shall be measured between transverse planes passing—

(i) in the case of a forward projection, through the foremost point of the vehicle and that part of the projection furthest from that point; and

(ii) in the case of a rearward projection, through the rearmost point of the vehicle and that part of the projection furthest from that point;

In this and the foregoing sub-paragraph “vehicle” does not include any special appliance or apparatus or any part thereof which is a forward projection or a rearward projection;

(f) references to the distance between vehicles, in relation to vehicles carrying a load, are references to the distance between the nearest points of any two adjacent vehicles by which the load is carried, measured when the longitudinal axis of each vehicle lies in the same vertical plane.

For the purposes of this sub-paragraph, in determining the nearest point of two vehicles any part of either vehicle designed primarily for use as a means of attaching the one vehicle to the other and any fitting designed for use in connection with any such part shall be disregarded;

(g) references to a combination of vehicles, in relation to a motor vehicle which is drawing one or more trailers, are references to the motor vehicle and the trailer or trailers drawn thereby, including any other motor vehicle which is used for the purpose of assisting in the propulsion of the trailer or the trailers on the road;

(h) the overall length of a combination of vehicles shall be taken as the distance between the foremost point of the drawing vehicle comprised in the combination and the rearmost point of the rearmost vehicle comprised therein, measured when the longitudinal axis of each vehicle comprised in the combination lies in the same vertical plane;

(i) the extreme projecting point of a vehicle is the point from which the overall width of the vehicle is calculated in accordance with the definition of overall width contained in regulation 3(2);

(j) without prejudice to sub-paragraph (e) the foremost or, as the case may be, the rearmost point of a vehicle is the foremost or rearmost point from which the overall length of the vehicle is calculated in accordance with the definition of overall length contained in regulation 3(2); and

(k) an agricultural, horticultural or forestry implement rigidly but not permanently mounted on an agricultural motor vehicle, agricultural trailer or agricultural trailed appliance, whether or not part of its weight is supported by one or more of its own wheels, shall not be treated as a load, or special appliance, on that vehicle.