21—58.3(317) Records. A person selling or offering for sale any or all of the varieties listed in rule 21—58.2(317) shall retain in the person’s possession records on the inventory of such varieties acquired, sold, or retained by the person. These records shall include the identity and address of the supplier of any of the varieties. These records shall be retained for a period of three years and shall be available to the department for inspection during the person’s regular business hours.