Professional Licence
A Class 1, 2, 3 or 4 licence is considered a Professional Drivers Licence. You must be a fully classed 5 driver (i.e. not under Graduated Driver Licencing) in order to be eligible for professional class testing.
Class 1 - any vehicle
Class 2 - bus
Class 3 - 3-axel +
Class 4 - taxi and ambulance