2. Every buyer must withhold, from the amount that is to be paid to each producer, the annual assessment payable to the certified association. The buyer is exempted from this obligation only if a producer submits a receipt to him for the current year indicating that payment of the said assessment has been made or when the certified association indicates to him that it has already received such payment from producers. In the latter instance, the certified association shall provide the buyer with a list of such producers.
R.R.Q., 1981, c. P-28, r. 6, s. 2.