and if you would speak Thai you would know that black african people are called khun dam which means black people, and indians are khun india, and there is khun jippun, Japanese and khun jin, Chinese people. And we Farangs are with all of them gansha. Which means foreigner. But in the group of foreigners we are the Farang ( caucasian ). And all these expressions are about race. Believe it or not.
According to the UN Traffic Act of 1949 and the Thai Traffic Act of 1979, an IDP is not required if you are a tourist/visitor in Thailand as long as your license is in English, has a photo, and your country is a contracting state of the 1949 treaty, which most are. (See motoring law below) If you are a resident, however, you require a Thai drivers license. As a tourist, rental car companies, insurance companies and police will all accept your home license. Still, it not a bad idea to obtain a legitimately issued INTERNATIONAL DRIVING PERMIT (IDP) before you leave your home country.
International Driving Permit's are easily obtained from your local Automobile Association (RAC, RACQ, NRMA, AAA etc) for a nominal fee .
This permit acts as a transcription of your national drivers licence credentials. It has your current photo affixed, and should be carried together with your national drivers licence.