Article 9. Brokers of California Food And Agricultural Code >> Division 20. >> Chapter 7. >> Article 9.

(a) Every licensee operating as a broker, upon negotiating the sale of farm products, shall issue to both buyer and seller a written memorandum of sale, before the close of the next business day, showing price, date of delivery, quality, and all other details concerned in the transaction.
  (b) The memorandum required by subdivision (a) shall have an individual identifying number printed upon it. The numbers shall be organized and printed on the memoranda so that each memorandum can be identified and accounted for sequentially. Unused or damaged memoranda shall be retained by the broker for accounting purposes.

A licensee operating as a broker shall not alter the terms of the transaction as specified on his original memorandum of sale without the consent of both parties to the transaction. Upon making such change, the broker is required to issue a clearly marked corrected memorandum of sale, which shall clearly indicate the date and time when such adjustment or change was made, and shall transmit such corrected memorandum to both buyer and seller before the close of the next business day.