Document ID: chunk:federal_register_of_legislation:F2016C00737:clause:1_13:p6
Version: federal_register_of_legislation:F2016C00737
Segment Type: clause
Provision Reference: sch 1 cl 13 (pt 6/11)
Character Range: 27892–30547

towed.
 The terms have the same meaning in these Regulations as they have in the Act.

4.1  Definitions
  In this Schedule:
ADR (Australian Design Rule) means a national standard under the Motor Vehicle Standards Act 1989, as amended and in force from time to time.
approved air suspension system, in relation to a vehicle, means a suspension system in which:
 (a) vertical movement between each axle and the body of the vehicle is controlled by variations in the pressure of air in an air spring; and
 (b) the proportion of the vehicle's mass that is borne by the air spring remains substantially constant despite variations in the pressure of air in the air spring.
axle means one or more shafts positioned in a line across a vehicle, on which one or more wheels intended to support the vehicle turn.
axle group means a single axle group, tandem axle group, twinsteer axle group, tri‑axle group or quad‑axle group.
B‑double means a combination consisting of a prime mover towing 2 semi‑trailers.
       Typical B‑double
centre of an axle group means:
 (a) a line located midway between the centre‑lines of the outermost axles of the group; or
 (b) if the group consists of 2 axles, one of which is fitted with twice the number of tyres as the other axle—a line located one third of the way from the centre‑line of the axle with more tyres towards the centre‑line of the axle with fewer tyres.

       Centre of a typical tandem axle group fitted with an equal number of tyres on each axle

       Centre of a typical tandem axle group fitted with a different number of tyres on each axle

       Centre of a typical tri‑axle group
       Centre of a typical quad‑axle group
combination means a motor vehicle connected to one or more trailers.
complying bus means:
 (a) a bus with 2 or 3 axles and a single steer axle that:
 (i) is fitted with a compliance plate in accordance with the Motor Vehicle Standards Act 1989 indicating that the bus was manufactured during or after July 1994; and
 (ii) meets the emergency exit specifications in ADR 44; and
 (iii) meets the rollover strength specifications in ADR 59; and
 (iv) meets the occupant protection specifications in ADR 68; and
 (v) is equipped with an approved air suspension system; or
 (b) a bus that is the subject of a declaration under regulation 13 or under a corresponding law of another State or Territory.
converter dolly means a trailer with one axle group or single axle and a fifth wheel coupling designed to convert a semi‑trailer into a dog trailer.

       Typical converter dolly
dog trailer means a trailer (including a trailer consisting of a semi‑trailer and converter dolly)