Sunt mai multe variante - dar pentru UK am gasit varianta "certificate for driving abroad". Celelalte nu sunt neaparat din surse native de limba engleza.

If you’re driving a company car, or have leased or borrowed one, you also need a letter from the owner stating that you have permission to take it out of the country.

http://www.saga.co.uk/insurance/travel-insurance/tips/drivin...

In order to take the car abroad <B>a proxy for driving abroad</B> is necessary. For journeys to the Nordic countries (Sweden. Norway, Denmark) a proxy is not needed.
http://www.leaseplan.fi/en-GB/for-drivers/taking-a-car-abroa...

Whenever you are planning to drive your LeasePlan vehicle abroad, you need to provide customs authorities with a power of attorney which should be requested in writing to LeasePlan, providing details of the country of destination/transit, the dates of the journey and your personal ID/passport information.
http://www.leaseplan.ro/en/driving-your-vehicle-abroad.html


http://www.dayscontracthire.co.uk/going-abroad

Documents required for issuance of power of attorney for driving Abroad
http://www.sogelease.bg/en/customer-care/travel-abroad.html
Pentru UK cred ca e un formular special - "Vehicle on Hire certificate".
Eu as merge pe o formulare mai generala - cred ca proxy sau power of attorney for driving abroad.