California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 56809

(a) A producer of farm products, or his or her son or daughter, father, mother, or regularly employed employee.

(b) The operator of any vehicle which is engaged in the transportation of any farm product to market if the operation of such vehicle is subject to the jurisdiction of the Public Utilities Commission and the rate which is charged for such transportation includes the charge for unloading the farm product which is so transported.