International driving permit

You can get them from the Land Transport department down R108, if you have a Thai Driving licence.
The cost is minimal & takes 48 hours I think.


Some old GTR posts on the IDP



 
I have been looking into this topic recently because the rules for International Driving Permits seem to vary from country to country. From what I understand, carrying both your national driving licence and an IDP is often recommended, especially when renting a vehicle abroad.

I also found that checking official documentation requirements before travelling can save a lot of confusion, as some countries and rental companies have their own policies regarding foreign licences.