Cal. Ed. Code § 45204
Notwithstanding the provisions of Section 45203, if a school district establishes a position or class of positions for which employees are required to work exclusively on weekends and holidays, and for which a special salary rate is established that recognizes the exclusive weekend and holiday peculiarity, the employees and positions may be exempted, by the personnel commission, where applicable, or the governing board from the benefits of Section 45203 . No governing board may create a position or a class of positions, under this section, to avoid payment of overtime.
This section shall apply to districts that have adopted the merit system in the same manner and effect as if it were a part of Article 6 (commencing with Section 45240) of this chapter.
Ca. Educ. Code § 45204