Cal. Gov't Code § 53682
Notwithstanding any other provision in this article except Section 53652, the treasurer may deposit moneys in and enter into contracts with any depository, as defined in subdivision (c) of Section 53630, for services to be rendered by that depository that in the treasurer’s judgment are to the public advantage. One copy of each contract entered into under this section shall be filed with the auditor or corresponding officer of the local agency. The contract shall: