An International Driving Permit is not a license itself but an official translation of your license into 10 languages. In the United States, only two organizations are authorized to issue IDPs: The American Automobile Association (AAA) and the American Automobile Touring Alliance (AATA). Countries like Japan, Italy, Spain, and Austria legally require an IDP in addition to your license. Car rental agencies in many other countries may also require it as part of their policy.