Vehicle registration plates of the United Kingdom

At the beginning of the century, with mechanically propelled vehicles increasing in number, and accidents occurring more frequently, it became apparent that a means of identifying cars had become necessary. The solution was The Motor Car Act 1903. From 1st January 1904 it become compulsory for every motorcar to be registered with a number plate. This came about 5 years after Dutch authorities first introduced the idea to the world.

The first mark to be issued in London was the simple, bold, A1 and this was registered to Earl Russell. He wanted the mark so badly he camped out all night to secure it, making him not only the first registrant but also the inventor of the idea of having a distinctive, personalised or cherished plate on a vehicle.

Dateless 1903-1963

The first plates issued were dateless, that is, there was nothing to denote the year of issue. This system lasted for an incredible 60 years.

Initially, the marks were made up of a local council identifier code of up to 3 letters, followed by a random number, e.g. ABC 123. In the early 1950s, as numbers started to run out, the components were reversed, giving rise to registrations in the format 123 ABC.

In 1920 The Roads Act was passed that made a few minor changes to the number plate system. Up until this time, there was nothing to stop authorities having two registers, one for cars and one for motorcycles. This meant that it was possible for a car and a motorcycle in the same area to have the same plate. The 1920 act put a stop to this and ensured that all authorities had one single register for all vehicles. Also, up until 1920, if a vehicle moved from one area to another, it would lose the plate and receive a new one in the new area, the old plate being reassigned to another vehicle. It was decided that this was simply too confusing and inconvenient, so this practice was stopped by the 1920 Roads Act.

Suffix 1963 – 1983

By 1963, a number of local councils had run out of registrations, even by adding extra digits and reversing them. As a result of this, the Suffix system was introduced, a letter indicating the year of registration being added at the end of the plate, which until then had comprised only 3 letters followed by 3 numbers. Thus, 1963 plates had the format AAA 111A, 1964 plates AAA 111B and so on. This was the first change to a system that had been set up in 1903 when there were far fewer cars on the roads. Since then the administration of the system has turned into a massive task. Everything was done manually and locally.

In 1963, as well as a revamp of the system, thought started to be given to utilising some modern technology, namely, computers to create a centralised system. This system would be nine years in the planning!

Since 1903 the design of the physical plates had gone through a few changes but the most significant was in 1973 when all newly registered vehicles were required to have reflective style number plates, with black

letters on a white background at the front, and on a yellow background at the rear. Older style plates, with white or silver letters on a black background, remained legal for vehicles already registered.

Eventually, in 1974, the centralised DVLC system was up and running, no longer were local councils responsible for vehicle-registration.

Prefix 1983 – 2001

The Prefix system started in August 1983. This saw the letter indicating the year moved to the beginning of the registration mark, thus doubling the lifespan of the number plate system.

Prefix registrations can be broken down in three sections:

First Letter: The year the car was registered and put on the road, hence its age. A for 1983, B for 1984 and so on

Last two letters: An area code that indicates where the plate was registered.

The three numbers and the first of the three letters at the end have no meaning, only providing a variation for identification.

This system continued until the end of August 2001, and a large number of these registrations were held back for later release or for personalised registrations.

The letters I, O, U and Z were not issued at all as Prefix letters, and Q was used only where the age or origin of the vehicle could not be identified.

Of course the lifespan of this system could be guessed at. It had taken just 20 years to exhaust the suffix system, souring the 1990s a lot of thought was given as to what to do when the prefix system had also run out of combinations.

Current Style 2001 – Now

The current style started in 2001. Police evidence suggested that witnesses, particularly in hit and run incidents, remember the letters of a registration mark much more easily than the numbers. As people read from left to right it made sense to put this information, the local code, at the beginning rather than at the end of the number plate. As the result the current system for registrations is made up of 3 parts, as shown below:

Local Region:

This represents the place where the car was first registered. Vehicles registered in Birmingham, for example, begin with the letters BA – BY; those registered in Chelmsford begin EA – EY.

Date ID:

This indicates the date of registration of the vehicle, and changes every 6 months, in March and September.

The system started with the use of 51 to denote the 6 months from September 2001, with 02 replacing it in March 2002. 52 then denotes September 2002, 03 denotes March 2003 and so on. This continued until March 2010 when 10 and 60 had been reached and so it goes on.


The last three letters are random and can now include Z.

This current system is far more future-proof that than the previous plate styles were. This system can cater for up to 12.6 million new registrations each year. It is believed this system will run smoothly until at least 2049, when it can simply be reversed.