CA Gov't Code Section 1157.8

Officers and employees of public agencies may authorize deductions to be made from their salaries or wages for the purchase of United States savings bonds in accordance with provision made by the governing body of the public agency. All auditors, treasurers, and other disbursing officers of public agencies are authorized to recognize and act upon these requests for salary or wage deductions and to establish special accounts for each officer or employee so that sufficient funds may be accumulated to the credit of the officer or employee for the purchase of United States savings bonds. All funds so accumulated are trust funds.