Cal. Civ. Proc. Code § 842
(a) Except as otherwise stipulated by the parties or ordered by the court, within six months of appearing in a comprehensive adjudication, a party shall serve on the other parties and the special master, if one is appointed, an initial disclosure that includes all of the following information:
(d)
(e) A party that has made its initial disclosures, as described in subdivision (a), or that has responded to another party’s discovery request, shall supplement or correct a disclosure or response in all of the following situations: