For all Non-European Union renters, it is highly recommended your national driver's license must be accompanied by an International Driving Permit (IDP). An IDP translates the national license into various languages and is on its own, without the national license, not acceptable. If a license issued outside the European Union cannot be read or understood, then it is not acceptable, unless accompanied by a translation from the official source, e. g. embassy headed paper. This includes licenses which are only partly translated, Japanese and all Arabic licenses etc.