1949 Geneva vs 1968 Vienna Convention: Which IDP Format Does Your Destination Use?
Almost every question about International Driving Permit validity traces back to one thing: there are two United Nations Conventions on Road Traffic, they were written nineteen years apart, and countries have signed up to different ones. The format your destination recognises determines how long your permit is good for.
The 1949 Geneva Convention
The older framework. Permits following the 1949 format are generally recognised for a maximum of one year from the date of issue. Countries that operate under the 1949 Convention include the United States, Japan, Australia, India, Ireland, Singapore and Malaysia, among others.
If your destination follows the 1949 format, buying a three-year permit does not extend how long it will be accepted there — the one-year ceiling comes from the Convention, not from the issuer.
The 1968 Vienna Convention
The later and now more widespread framework. It supports a validity of up to three years, or until your national licence expires, whichever comes first. Most of continental Europe, Russia, Brazil and a large number of other states operate under it.
The 1968 Convention also updated the document layout and the categories of vehicle, which is why 1949 and 1968 permits do not look identical.
Why some countries appear on both lists
A state can be party to both instruments. Where that happens, the 1968 Convention generally supersedes the 1949 one between states that are party to both — but the practical answer at a rental desk is usually whichever document the clerk recognises. Carrying a permit that covers both formats avoids the argument entirely.
This is also why blanket claims like "valid in 150 countries" or "valid in 189 countries" should be read carefully. Recognition is not uniform, and it is not the same thing as a legal requirement.
What this means when you order
- Travelling to a 1949-format country: the one-year option is normally the sensible choice.
- Travelling to a 1968-format country: a longer validity is usually accepted, capped by your national licence's own expiry.
- Multi-country trip: check the strictest destination on your route and plan around that one.
- Always confirm with the destination's road-traffic authority before you travel — Convention membership changes over time.
More guides
- Do I Need an International Driving Permit? A Country-by-Country Reality Check
- What Documents Do You Need to Rent a Car Abroad? The Complete Checklist
- How to Get an International Driving Permit: Official Routes and Translation Services
- How Long Is an International Driving Permit Valid? Validity, Expiry and Renewal