This what it says on the Hertz website
"Important Notice for Customers with UK Driving Licences issued in Great Britain
From June 8th 2015, the paper counterpart of the UK photo card driving licence will not be valid and will no longer be issued by the DVLA. This change applies to Great Britain only and not Northern Ireland.
From June 8th when renting in the UK, Angola, Bahrain, Balearics, Botswana, Canaries, Croatia, Namibia, Oman, Portugal, South Africa, Sweden and Tunisia, all drivers with a UK licence (Great Britain) will need to provide evidence of any driving endorsements. This also applies if you have a paper licence that was issued before 1998."
https://www.hertz.co.uk/p/vehicle-guide ... hicle-hireUsed Hertz twice in the USA since the June ruling and all they wanted was my driving licence and credit card.
Warning! This information is worth every penny you paid for it.