Our government is keen to prevent fraudsters attempting to make vehicles look younger than they actually are so that they can then sell them for more money. To prevent this from happening, the DVLA does not permit 'younger' registration marks to be transferred to older vehicles. However it does permit 'older' marks to be transferred to younger vehicles without hindrance.
Some registration marks do not carry an 'age identifier' within their sequence (please see below for examples). This is true of mainland UK registrations from pre 1963 and registration marks originally from Northern Ireland. These two types of registration can be transferred to any age of vehicle. All other types of registration marks carry 'age identifiers' and so if you choose one of these it's always best to check if it can be legally transferred to your chosen vehicle, before you buy it.
In order to have a personalised registration number assigned to your vehicle, the vehicle must be: