Any merchant, whether an individual person, a firm, corporation, partnership, or association, violating any of the provisions of this chapter shall be guilty of a simple misdemeanor. Each sale made in violation of the provisions of this chapter shall be and constitute a separate offense. [C58, 62, 66, 71, 73, 75, 77, 79, 81, §81A.9 ] C93, §9C.9 2023 Acts, ch 66, §1