Arizona has 2 plates, Classic and Historical.
Classic must be listed on some register of classic cars by a recognized classic car association. There are limits on use.
Historical must be over 25 years for standard passenger class registered vehicles. For non standard passenger registered vehicles, they are supposed to be over 25 years with a connection to something that makes it special. Most motorized RV's in AZ with Historical's are those that are over 25 years and the first or last year of a chassis production, or less than 10 of that model remaining in use, or special design, or a one year only production, or one that is commemorative, and of course those with a direct historical connection to AZ.
You rarely see AZ Historical plates on RV's and I only know of one Classic plated RV in AZ.
