18. A person who had an implantable defibrillator installed following a cardiac rhythm event with decreased state of consciousness is authorized to drive a road vehicle of Class 5, Class 6 or Class 8 provided that no cardiac rhythm disorder affecting the state of consciousness has occurred for at least 6 months and that the person has been under medical supervision during that period. If these requirements are not satisfied, the presence of such defibrillator is essentially inconsistent with driving a road vehicle of any of those classes.
Any disturbance of consciousness resulting from the action of a defibrillator is essentially inconsistent with driving a road vehicle for a period of 6 months following the event.