Western Australian Current Regulations Western Australian Current Regulations (1) The distance
between the coupling pivot point on the drawbar of a dog trailer, and the
centre line of the front axle group or of the front single axle of the
trailer, must —
(a) not
be over 5 m; and
(b) not
be under 3 m, if the trailer is used in a road train over 19 m long.
Length of a drawbar on a dog trailer
(2) The distance
between the coupling pivot point on a drawbar, and the centre line of the axle
group or single axle on a trailer with only one axle group or single axle
(except a semi‑trailer) must not be over 8.5 m.
[Regulation 176 amended: Gazette
29 Mar 2019 p. 964.]