18. Penalty: Any person or association violating any of the provisions of this Regulation, is liable to a fine of not more than $20, and to an additional fine of not more than $20 a day, for each day over 2 during which the violation continues.
If the violation is committed by a natural person, such person is liable, in default of payment of the fine and costs, to imprisonment for a period not exceeding 8 days for the first violation, and not exceeding 30 days for subsequent violations.
R.R.Q., 1981, c. Q-2, r. 3, s. 18.