3-563. Tax, license or fee against producers and purchasers prohibited A. A tax, license or fee may not be imposed or levied on or demanded or collected from: 1. A producer for a sale of a food product. 2. A purchaser of a food product from a producer. B. A penalty or punishment may not be imposed on account of the sale of a food product, except for a violation of laws providing for inspection. C. A municipal ordinance that seeks to impose or subject a producer, or a purchaser of a food product from a producer, to a tax, license or fee is void, except that all such products in common with similar products offered for sale by persons not the producers thereof are subject to inspection. A municipal ordinance providing for inspection is not valid unless it applies in the same manner and terms to other persons offering similar products for sale.
Arizona Legal Code