A driver's license issued by a foreign administrative office can be switched to a Japanese license
An International Driving Permit, or IDP for short, is a document that allows holders to drive in any country that is a signatory of the Geneva Convention of 1949. IDPs must be issued in the same country that issued your original driver’s license.
we have noticed an increase in the number of people who are inadvertently driving illegally in Japan with International Driver’s Permits. Many people, especially those who came to Japan before 2002, are unaware that they are driving on an invalid IDP, and are in danger of suffering fines, jail time, or even deportation if they are discovered, usually during a routine traffic stop.
The inspection system is in place to ensure that vehicles on Japanese roads are properly maintained and are safe to be on the road.
The various drivers signs used in Japan