California Code, Family Code - FAM § 17311.5

(a) The department may enter into a trust agreement with a trustee or fiscal intermediary to receive or disburse child support collections. The trust agreement may contain provisions the department deems reasonable and proper for the security of the child support payments. Any trust accounts created by the trust agreements may be held outside the State Treasury.

(b) For the 2012-13 fiscal year only, trust account moneys may be invested in any of the types of securities listed in Section 16430 of the Government Code or alternatives offering comparable security, including, but not limited to, mutual funds and money market funds. This subdivision does not authorize investments or transfers that would interfere with carrying out the objective for which the Child Support Payment Trust Fund was created.