California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 64691.7

(a) The fee for cattle or calves, whether originating in the state or out of state, shall be paid by the seller. The fee shall be charged and collected from the seller or from the seller's account and paid to the secretary by each operator of any stockyard, livestock auction market, slaughterhouse, or registered feedlot in the state. The fee is due and payable to the secretary on or before the 15th day of the month next succeeding the month in which the cattle and calves are sold. Fees that are not collected in the manner provided in this subdivision shall be collected from the seller by the Bureau of Livestock Identification at the time that brand inspection fees are collected.

(b) The fee for cattle or calves for which the fee would not otherwise be collected pursuant to subdivision (a) and that are also exempt from brand inspection, shall be charged and collected from the seller in a manner determined by the department.

(c) Any fees that are not collected in the manner specified in subdivision (a) or (b) shall be paid to the secretary directly by the seller on or before the 15th day of the month next succeeding the month in which the sale occurs.

(d) A fee shall be paid for each head of cattle or calves slaughtered in the state unless specifically exempted by Section 64691 or 64702. If the fee is not deducted from the seller it shall be paid by the purchaser or slaughterer and is due and payable in the manner provided in this section.