(d) while the throttle pedal is depressed, the authorised official must measure the smoke emitted from the emission system of the vehicle in order to determine whether or not it is dark smoke;
(d) ngeli xesha kucinezelwe umcephe, igosa eligunyazisiweyo malilinganise umsi ophuma kumbhobho okhupha umsi wesithuthi ukuze liqondisise ukuba lo msi mnyama okanye awumnyamanga;