This Part does not apply to a person who is driving –

(a) a heavy truck that is being used by the State Emergency Service, the Police Service, the Tasmania Fire Service, the Tasmanian Ambulance Service, the Australian Defence Force or Airservices Australia Aviation Rescue and Fire Fighting; or

(b) an unladen controlled vehicle in any of the following circumstances:

(i) to test the performance of the vehicle for mechanical service or repair;

(ii) to demonstrate the vehicle to a prospective purchaser;

(iii) to test drive the vehicle;

(iv) to move the vehicle under the authority of a trade plate in accordance with regulation 91 of the Vehicle and Traffic (Driver Licensing and Vehicle Registration) Regulations 2010 .