Northern Territory Consolidated Regulations Northern Territory Consolidated 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 metres; and
(b) not be under 3 metres, if the trailer is used in a road train over 19 metres 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 1 axle group or single axle (except a semi-trailer) must not be over 8.5 metres.