5. (1) Where the maximum base wholesale price of a specified fuel has been determined under paragraph 4 (1) (a), a person shall not, without reasonable excuse, sell or offer for sale, by wholesale, any such fuel at a price greater than that maximum base wholesale price.
(2) Where the maximum retail price of a specified fuel has been determined under paragraph 4 (1) (b), a person shall not, without reasonable excuse, sell or offer for sale, by retail, any such fuel at a price greater than that maximum retail price.
(3) Where the maximum retail margin in relation to a specified fuel has been determined under paragraph 4 (1) (c), a person shall not, without reasonable excuse, sell or offer for sale, by retail, any such fuel at a retail margin greater than that maximum retail margin.
Penalty:
(a) in the case of a natural person—$5,000 or imprisonment for 6 months, or both;
(b) in the case of a body corporate—$25,000.