California Code, Government Code - GOV § 20480

(a) An out-of-class appointment by a contracting agency employer or a school employer shall not exceed a total of 960 hours in each fiscal year.

(b) A contracting agency employer or school employer shall track the hours worked by an employee serving in an out-of-class appointment and report that service to the system no later than 30 days following the end of each fiscal year.

(c) The compensation for an appointment described in subdivision (a) shall be pursuant to a collective bargaining agreement or a publicly available pay schedule.

(e) The member shall bear no liability, obligations, or expense as a result of the unlawful actions of the employer with respect to this section.

(f) For purposes of this section, “out-of-class appointment” means an appointment of an employee to an upgraded position or higher classification by the employer or governing board or body in a vacant position for a limited duration.

(g) For purposes of this section, “vacant position” refers to a position that is vacant during recruitment for a permanent appointment. “Vacant position” does not refer to a position that is temporarily available due to another employee's leave of absence.