California Code, Government Code - GOV § 26750

(a) The fee for serving an earnings withholding order under the Wage Garnishment Law (Chapter 5 (commencing with Section 706.010) of Division 2 of Title 9 of Part 2 of the Code of Civil Procedure), including, but not limited to, the costs of postage or traveling, and for performing all other duties of the levying officer under that law with respect to the levy shall be forty-five-dollars ($45).

(b) Except as provided in Section 26746, the levying officer shall not charge additional fees, costs, or expenses for performing the duties under the Wage Garnishment Law (Chapter 5 (commencing with Section 706.010) of Division 2 of Title 9 of Part 2 of the Code of Civil Procedure).