Cal. Fam. Code § 3181

(a) In a proceeding in which mediation is required pursuant to this chapter, where there has been a history of domestic violence between the parties or where a protective order as defined in Section 6218 is in effect, at the request of the party alleging domestic violence in a written declaration under penalty of perjury or protected by the order, the mediator appointed pursuant to this chapter shall meet with the parties separately and at separate times.
(b) Any intake form that an agency charged with providing family court services requires the parties to complete before the commencement of mediation shall state that, if a party alleging domestic violence in a written declaration under penalty of perjury or a party protected by a protective order so requests, the mediator will meet with the parties separately and at separate times.