Cal. INS § 763

(a) A depository institution shall, to the extent practicable, keep the area where the depository institution conducts transactions involving insurance products or annuities physically segregated from areas where retail deposits are routinely accepted from the general public, identify the areas where insurance products or annuity sales activities occur, and clearly delineate and distinguish, with appropriate signage, those areas from the areas where the depository institution’s retail deposit-taking activities occur.

(b) Any person who accepts deposits from the public in an area where those transactions are routinely conducted in the depository institution may refer a customer who seeks to purchase an insurance product or an annuity to a qualified person who sells that product only if the person making the referral receives no more than a one-time nominal fee of a fixed dollar amount for each referral that does not depend on whether the referral results in a transaction.