Country by country
The rule that matters on a multi-country trip is the strictest one on the route: you carry a permit for the whole journey or you do not. Here the strictest is United Kingdom (recommended).
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United Kingdom Recommended
Valid US license accepted for 12 months from your last entry; no IDP legally required. Some rental firms still ask for one.
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Ireland Recommended
US citizens may drive on a US license for a tourist visit of up to 12 months. An IDP is optional - apply through AAA before you travel if you want one for the rental counter.
| Destination | IDP | What the rule says |
|---|---|---|
| United Kingdom | Recommended | Valid US license accepted for 12 months from your last entry; no IDP legally required. Some rental firms still ask for one. |
| Ireland | Recommended | US citizens may drive on a US license for a tourist visit of up to 12 months. An IDP is optional - apply through AAA before you travel if you want one for the rental counter. |
Driving on a licence from somewhere else?
Every answer above assumes a US licence. Open this trip in the checker to switch the issuing country, add or remove destinations, and see the verdicts change.
Other trips
Informational only, not legal advice. Requirements change; confirm with the destination's embassy or your automobile association before you drive.