Driving in Europe With a US License: IDP Rules Country by Country

What the IDP is, and what it is not

An International Driving Permit is a paper booklet that translates your US licence into the standardized formats set by the 1949 Geneva and 1968 Vienna road-traffic conventions. Most of Europe operates under the 1968 Vienna Convention, while the United States has ratified the 1949 Geneva Convention, so US-issued permits are in the 1949 format. In practice European rental counters and police accept the US 1949 permit, and the difference between the two formats rarely matters at the desk.

Two points are worth stating plainly. First, the IDP is never valid on its own: you present it together with your original, unexpired US licence, because the permit only translates that licence. Second, in the US only AAA and AATA are authorized to issue the official permit. Our online service provides the same certified translation content in a fast digital workflow that you carry alongside your US licence; it is not a government-issued permit and does not replace any country's official document where one is legally required.

Enforcement is uneven. The same US licence waved through at one branch can be refused at another in the same country, and rental terms differ between Hertz, Europcar, Sixt, and Enterprise. Because of that, the calm default is to carry a permit rather than gamble on a specific counter.

Where it is legally required: Italy, Spain, Austria

Italy has the strongest and most consistently enforced rule. Article 135 of the Codice della Strada requires non-EU drivers to carry an IDP, or a sworn Italian translation, together with their licence, and fines commonly run from a few hundred to well over a thousand euros. Hertz, Europcar, and Sixt branches in Italy widely ask for the permit at pickup, and driving without one can complicate an insurance claim. Treat Italy as mandatory.

Spain's DGT rules likewise require non-EU drivers to hold an IDP alongside their domestic licence, and police can impound a vehicle. Enforcement is real if slightly less uniform than Italy.

Austria requires an IDP, or a certified German translation, from day one of a tourist visit, the clearest day-one requirement in this group. Carry the permit before you drive.

Where a translation is expected: France and Germany

France lets a US licence be accompanied by either an IDP or an official French translation for shorter stays. There is no separate legal mandate for the IDP if you carry a certified translation, but the permit is by far the easiest way to satisfy that requirement. Rental copy is inconsistent, so check the current policy of your specific rental company.

Germany treats a US licence as valid for temporary visits, but a certified German translation is effectively expected, and an IDP is accepted as that translation. The permit satisfies the rule cleanly, so it is the recommended choice.

Greece, and the recommended-only countries

Greece is genuinely ambiguous. A US Embassy policy recognizes US licences for up to six months, yet many rental-industry lists still classify Greece as IDP-mandatory with high fines, and rental companies there commonly require one regardless. Given the conflict, the safest step is to carry a permit and check current policy before you travel.

Portugal, the United Kingdom, and the Netherlands do not legally require an IDP for short tourist stays. Portugal allows driving on a US licence for roughly 185 days, though some desks still ask for a permit. The UK recognizes a US licence for up to 12 months and most hire companies do not require an IDP. The Netherlands allows a US licence for up to 185 days for tourists. In all three, a permit is recommended for smoother counters and accident protection rather than strictly required.

How to decide for your trip

A useful rule of thumb: carry an IDP if your itinerary touches Italy, Spain, or Austria, and consider it strongly for France, Germany, and Greece. For the UK, Portugal, and the Netherlands it is optional but low-cost insurance against an inconsistent rental desk.

Because rules and rental practices change and vary by branch, confirm the exact requirement for each country you plan to drive in. Our country directory has per-country detail on documents, validity windows, and local driving notes so you can match your permit to your route before you go.