Would be curious what countries require one, I have never encountered an issue without one in my limited experience.
Insert International Driving Permit stories here . . .
In Australia, laws and driving regulations differ from state to state. Some states require you to carry an International Licence with your current foreign licence. Other states request you carry your current foreign driver's licence together with a formal translation of your licence into English.
In most Australian states and territories (the exception is the Northern Territory), you are able to drive on a overseas licence as long as it is current. You can only drive vehicles which your overseas licence authorises you to drive and you must drive according to any conditions on your overseas licence.
You should carry an International Driving Permit.
You must carry an international driving permit
Strange... I drove in both the Northern Territory of Australia as well as Ireland, and I was even pulled over in Ireland last August and had my driver's license checked by the officer. Not a word of needing an international one...
As mentioned before, poor enforcement doesn't mean the laws aren't on the books.
I find in the more touristy areas the cops know what the IDP requirements are and will ask and ticket accordingly. A cop that doesn't normally stop foreign drivers may not be up to date on the IDP treaties/requirements for each foreign country.