The director may assess a penalty of 1.5 percent per month, or fraction thereof, on any fees owed to the department for services rendered under this chapter whenever payment is not received within 30 days after the date of the invoice. The penalty shall be added to the original fee. In no event shall the total penalty for any one billed service exceed 50 percent of the original amount due for that service.

(Added by Stats. 1984, Ch. 996, Sec. 6.)