California Code, Business and Professions Code - BPC § 10236.7

(a) A real estate broker, when engaging in acts for which a license is required, who arranges a transaction pursuant to Article 6 (commencing with Section 10237) or one or more provisions of the Corporate Securities Law of 1968 (Division 1 (commencing with Section 25000) of Title 4 of the Corporations Code), shall clearly indicate in the real estate broker's transaction file the provision or provisions of this code or the Corporate Securities Law of 1968 pertaining to qualification or exemption from qualification under which the transaction is being conducted.  The real estate broker shall retain this information for the period specified in subdivision (a) of Section 10148.

(b) The real estate broker shall submit a copy of the information described in subdivision (a) to any investor from whom the real estate broker obtains funds in connection with the transaction, either directly or through an agent or affiliate, within 10 days of receipt of those funds.