Licence restrictions for P1 driver licences

Automatic transmission vehicles – You are restricted to driving an automatic or clutchless manual transmission vehicle if tested in one.
Zero Blood Alcohol Concentration (BAC) – You cannot have any alcohol in your system when you drive a vehicle.
Demerit points – If you incur 4 or more demerit points during the term of your licence, action will be taken to suspend the licence. Note that demerit points may carry over to your P2 licence.
Display of P plates – P plates (red P on a white background) must be clearly displayed on the front and back of the vehicle.
Licence class – You can only drive cars and/or motorcycles.
Passengers – The one passenger condition applies to provisional licence holders disqualified for a driving offence. After the disqualification period, you will be restricted to carrying no more than one passenger at all times while driving, for 12 months.
Seatbelts – You must ensure all occupants, including yourself, are in a seat that has a seatbelt or an approved restraint fitted and that each passenger is using the seatbelt or restraint.
Speed limit – You must not drive faster than 90 km/h and must observe the speed limit where it is below 90 km/h.
Supervising a learner – You must not supervise a learner driver.
Towing – You are allowed to tow light trailers up to 250 kilograms unloaded weight.
Vehicles – You must not drive any vehicle with:
Eight or more cylinders (except Diesel).
A turbocharged or supercharged engine (diesel powered engines exempt).
Modifications that increase engine performance.
Any other vehicle identified by the RTA – further details available on the RTA website.
Please note exemptions may apply.
In addition to the above, the following restrictions apply from 1 July 2007:

Display of P plates – P plates (red P on white background) must be clearly displayed on the front and back of the outside of the vehicle. The letter P on the plate must not be hidden.
Mobile phones – You must not use a mobile phone while driving or while your vehicle is moving or is stopped but not parked. This includes phones in the hands-free mode or with the loudspeaker operating.
Peer-Passenger – If you are under the age of 25 you must not drive with more than one passenger under the age of 21 between the hours of 11pm and 5am.
Licence suspension for speeding – Your licence will be suspended for at least three months for any speeding offence.

taken from rta website