28-5721. Additional assessment A. If the director is not satisfied with a report filed or the amount of use fuel tax paid by a licensee, the director may make an additional assessment of use fuel taxes due from the licensee based on any information available to the director. B. The director shall give written notice to the licensee of the additional assessment served personally or by mail addressed to the licensee at the licensee's address of record in the office of the director.
Arizona Legal Code