Those heading overseas after 8 June who wish to hire a car may need a special code to be generated by the DVLA.
The UK driving license paper counterpart – which displays endorsements and fines – is being computerised from that date.
A code may be required to show any convictions for driving offences, such as speeding.
Before heading abroad, drivers must log on to the DVLA website to get the code.
However, because the code is only valid for 72 hours, those who wish to hire a car more than three days in to their trip will be obliged to have a new code generated while they are away.
A telephone number will be operated for those who have no internet access.
While the news may disappoint those intent on a summer rental car holiday, the requirement will in fact depend on the hire firm itself; it is not an official stipulation.
It is believed that many UK motorists are not aware of the changes.
While the DVLA advises destroying the paper counterpart after 8 June, some motoring organisations are recommending that drivers keep hold of the document.
The situation was still far from clear, according to The British Vehicle Rental and Leasing Association (BVRLA).
A BVRLA spokesperson said, "Due to the short notice provided by the DVLA and the need to thoroughly test the new system, many car rental companies are still finalising their plans for the UK and abroad."
Taking Your Own Car?
News of the changes may tempt many motorists to take their own car abroad this summer. Does this news affect you? Tell us what you think in the comments section below.