Vehicle Number Plates: Standards

The British Standard for Retroreflective Number Plates (BS AU 145e) is published by the British Standards Institution (BSI).

The Driver and Vehicle Licensing Agency (DVLA) is part of the BSI committee that has reviewed this standard and the committee has recently proposed a number of amendments. The proposed amendments are intended to stop the production of number plates with raised characters, often referred to as 3D or 4D number plates and will prevent easy access to plates with ‘ghost’ characteristics. The proposals will also prevent suppliers from adding acrylic letters and numbers to the surface of the number, meaning any finished number plate must be flat. The proposed changes have been subject to a public consultation which closed on 13 December 2025.

The DVLA is working to further reduce the number of vehicles that have no registered keeper or are unlicensed. There are long-standing and robust measures, including legislative requirements, in place to ensure that keepers notify the DVLA when they buy and sell a vehicle. It is an offence to use a vehicle that does not have a registered keeper. The DVLA also has processes in place to correct records when it is made aware of inaccuracies.

Based on the latest available data, more than 93 per cent of vehicle keepers are contactable and traceable based on the information held on the DVLA’s records. Of the remainder, around 6% are in the motor trade, where a vehicle may legitimately have no registered keeper.