(1) A person must not use, or cause or permit the use of, a motor vehicle that is a light vehicle to tow a trailer if the trailer has a loaded mass exceeding (a) the towing capacity of the motor vehicle; or(b) the towing capacity of the towing attachment fitted to the motor vehicle.Penalty: In the case of (a) a first offence 20 penalty units; and(b) a second or subsequent offence 40 penalty units.(2) In this regulation towing capacity of the motor vehicle means (a) the towing capacity of the motor vehicle as specified by the manufacturer of the motor vehicle; or(b) if the towing capacity is not specified or is not able to be identified (i) 1.5 times the unloaded mass of the motor vehicle, if the trailer is fitted with brakes that are in working order; and(ii) the unloaded mass of the motor vehicle, if the trailer is not fitted with brakes that are in working order;towing capacity of the towing attachment means the towing capacity of the towing attachment as specified by its manufacturer.