Yes, I do have an International Driver's License. In fact, I've got three of them (they expire after six months or a year). Not once, never, have I been asked for it by the car rental companies. They have always been satisfied with my California driver's license. I don't think the I.D.L. is a requirement at all. I've always carried one as added insurance in the event of being stopped by a traffic officer who may not recognize my foreign license.

John in San Diego