Cal. Government Code § 1157.11

(a) Officers and employees of a county with a population of over 8,000,000, may authorize deductions to be made from their salaries or wages for the purchase of securities issued by any of the following: (1) The county. (2) Any joint powers authority created pursuant to an agreement to which the county is a party entered into pursuant to Article 1 (commencing with Section 6500) of Chapter 5 of Division 7. (3) Any public district which is governed by the governing body of the county. (4) Any nonprofit public benefit corporation created by the governing body of the county for the purpose of assisting the county in financing capital projects and equipment purchases, provided the corporation is deemed to be an instrumentality of the county for federal income tax purposes. (b) In each case, the deductions shall be made in accordance with provisions made by the governing body of the county. (c) For purposes of this section, “securities” includes bonds, notes, warrants, lease or installment sale obligations represented by certificates of participation, or other evidences of indebtedness. (d) The auditor, the treasurer, and other disbursing officers of the county are authorized to recognize and act upon the requests for wage or salary 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 securities as authorized by this section. All funds so accumulated are trust funds.