3.05.06. In the practice of his profession, or in anticipation of that practice, a hearing-aid acoustician may not enter into a contract with a manufacturer, distributor or wholesaler of hearing-aids to pay a debt with a sum of money calculated on a percentage or any other basis of the whole or a part of his gross revenue, net revenue, profits or fees.
R.R.Q., 1981, c. A-33, r. 2, s. 3.05.06.