Document ID: chunk:federal_register_of_legislation:F2016C00742:clause:1_508:p1
Version: federal_register_of_legislation:F2016C00742
Segment Type: clause
Provision Reference: sch 1 cl 508 (pt 1/21)
Character Range: 23018–26329

508                                                                                                           19.0                                                   27.0

 (3) For the purposes of Tables 1 and 2, the tyre width of a radial ply tyre is the number of millimetres marked on the tyre in the position labelled 'Section width in mm' on the diagram below.
       Position of section width marking on radial ply tyre

 (4) For the purposes of Tables 1 and 2, the tyre width of a bias‑type tyre is the number of millimetres equal to 25.4 times the number marked on the tyre in the position labelled 'Width code in inches' on the diagram below.
       Position of width code marking on diagonal or bias type tyre
 (5) If no section width or width code is marked on a tyre, the tyre width for the purposes of Tables 1 and 2 may be determined by measuring the width of the part of the tyre that normally comes into contact with the road surface.

1.2  Dimension limits
 (1) A vehicle or combination described in Table 3 must not, together with any load, exceed a dimension limit specified in the Table for that vehicle or combination, or the corresponding limit in the Vehicle Standards Regulations or the Mass and Loading Regulations, whichever is the greater.

Table 3
Type of vehicle or combination       Dimension                                                                  Limit (m)
Any except agricultural              Width                                                                      3.5
Any except agricultural              Height                                                                     4.6
Any combination except agricultural  Length                                                                     25.0
Special purpose vehicle              Length                                                                     14.5
Other rigid vehicle                  Length                                                                     12.5
Special purpose vehicle              Distance from the rear overhang line to rear of the vehicle                Lesser of 4 m and 90% of the wheelbase
Semi‑trailer                         Distance from the rear overhang line to the rear of the vehicle (or load)  Lesser of 5.5 m and 25% of the semi‑trailer's length
Special purpose vehicle              Projection in front of the centre of the steering wheel                    3.5

Note 1: Dimension limits for agricultural vehicles are set out in clause 4.3.
 The combined dimensions of a vehicle and its load must still comply with the requirements of Table 3 even if the load projects from the vehicle in any direction.
Note 2: A notice may specify routes for particular classes of vehicles under regulation 8. For example vehicles under 4.5 m in height may be allowed to travel on a greater number of routes than vehicles 4.6 m high.
 (2) Any flags, lights or mirrors required on a vehicle, combination or load must be disregarded when measuring the dimensions of a vehicle or combination for the purposes of these Regulations.
 (3) The centre lines of adjacent axles in an axle group on an overmass vehicle or combination must be at least 1.2 m apart.
       Rigid mobile crane, showing dimension limits

1.3  Making an unloaded vehicle smaller
  An oversize vehicle without