In South Africa, vehicle registration plates, known as number plates, are issued by the Department of Transport in each of its provinces.^[1] Each province have plates with unique designs, colour schemes, and alphanumeric patterns. For instance, the plates display combinations like AB 12 CD GP or CA 123-456, with distinct variations in layout and formatting across different regions of the country.

From 1 February 2000, a process started to replace all number plates in South Africa to an aluminium number plate with an RFID tag containing a unique identification code, including the ability to identify the number plate in a foreign nation. This is termed an Intelligent Number Plate system. The system has been implemented for additional and circumstantial use. The numbering structure on plates will also then change. Concerning the foreign identification system within South Africa, foreigners are granted the permission to verify their number plate to the South African number plate system.

The Department of Transport in South Africa has set aside R25 million for the project during the 2015/2016 fiscal year. The Department of Transport in KwaZulu-Natal has set aside R1.5 million for vehicle registration plates for the province. A secure electronic mark will be used in the encryption of the code. The system can automatically generate the details of driving offences committed by a driver.^[2]

As of January 2022, new vehicles are, however, still being fitted with plastic plates and the system has still not been implemented.

New legislation also requires that a new vehicle's number plate be fixed to the body of the vehicle, or an approved number plate holder, with four 4 mm rivets.

All vehicles in South Africa, excluding motorcycles, are required to display a number plate on the front and the rear of the vehicle. For vehicles that cannot accommodate a full size plate in front, a plate with smaller dimensions may be fitted with permission from the registering authority.

The validation of a vehicle's registration number is indicated by a licence disc displayed inside the vehicle's windshield and must be visible from the passenger side of the vehicle. The vehicle's registration number, VIN and engine number as well as the licence expiry date, vehicle weight and number of passengers the vehicle is allowed to carry is indicated on the disc.

In the Western Cape and KwaZulu-Natal, where the registration number is indicative of the town of registration, the registration number will not change when the owner of the vehicle relocates to another town in the same province. It is required of the owner to inform the authorities of a change of address within 21 days. However, if the owner relocates to another province, the owner has to register the vehicle in that province within 21 days. Whenever a vehicle is registered in a new owner's name, the vehicle will receive the registration of the new owner's town. If the vehicle is registered in the same town as the current registration, no change of registration number takes place.

When a vehicle changes ownership it is required that the vehicle be taken for a roadworthy test. The new owner is allowed to use a vehicle for a period of 21 days on the previous owner's registration before the vehicle has to be registered in the new owner's name. If the roadworthy result cannot be obtained within this period, the owner may register the vehicle without being roadworthy, however a licence disc will not be issued and the vehicle may not be used on a public road. A temporary permit must be obtained from the registering authority to drive the vehicle to the testing station or repair shop. The permit is valid for three days.

When a person buys a vehicle from a dealer in another province or town other than the one they live in, a temporary permit valid for three weeks is issued by the registration authorities. A vehicle can only be registered in the town the owner lives in. It is also not possible to renew the licence in any other town than the town the registered owner lives in.

The temporary permit is a cardboard "number plate" to be displayed in either the front or rear window of the vehicle.

When a vehicle's engine is replaced or the VIN and engine number needs to be verified for some legal reason, the vehicle needs to obtain police clearance. Since September 2012, a vehicle can only obtain a clearance if it was marked with a micro dot, or data dot system. This is a process where about 10,000 micro dots with a serial number on is sprayed with a resin onto all components of the vehicle. This serial number is linked to the vehicle's VIN on the national registration database. These dots can be found with an ultraviolet light and when magnified the serial number can be traced. New vehicles are treated in the factory and the dots carry the vehicle's VIN. This is to assist the authorities in identifying a vehicle or any part thereof when VIN and engine numbers are not legible, or have been removed.

Legislation is also on the table to have micro dotting made compulsory for all vehicles changing owners as well as requiring a 2-yearly roadworthy status for vehicles older than 10 years. The downside of this is that it might cause many poorer South Africans not to register vehicles in their name or to let licences lapse and just pay the fine when getting caught.

It is illegal in South Africa to alter or tamper with a vehicle's VIN or the factory stamped number on an engine in any way. Evidence of tampering will lead to the vehicles being confiscated and possibly destroyed.

Before 1994, South Africa had only four provinces: Cape Province, Natal Province, Orange Free State and Transvaal. Each province had its own identifying lettering: Cape – C, Natal – N, Orange Free State – O and Transvaal – T.