Northern Territory Consolidated Regulations Northern Territory Consolidated Regulations(1) The braking system of a trailer with a GTM over 2 tonnes must allow the driver of a motor vehicle towing the trailer to operate the brakes from a normal driving position.
(2) However, subrule (1) does not apply to an unloaded converter dolly that weighs under 3 tonnes if the motor vehicle towing the converter dolly has a GVM over 12 tonnes.
(3) The brakes on a trailer with a GTM over 2 tonnes must:
(a) operate automatically and quickly if the trailer breaks away from the towing vehicle; and
(b) remain in operation for at least 15 minutes after a break-away; and
(c) be able to hold the trailer on a 12% grade while in operation after a break-away.