Cal. Financial Code - FIN § 7100. Section 7100.
(a)
Notwithstanding any other provision of law, but subject to subdivision (b), an association may permit the owner of a deposit or account to make withdrawals by negotiable or transferable instruments for the purpose of making transfers to third parties.
(b)
With respect to deposits or accounts on which interest or dividends are paid, subdivision (a) shall apply only to the deposits or accounts which consist solely of funds in which the entire beneficial interest is held by one or more individuals or by an organization which is operated primarily for religious,
philanthropic, charitable, educational, political, or other similar purposes and which is not operated for profit.
(c)
Notwithstanding any other provision of law, an association may provide for the automatic transfer of funds services at the direction of an account holder.