Cal. Government Code § 955.9 (2026)
Special Provisions Relating to Actions Against the State
In actions on claims against a judicial branch entity, service of summons shall be made on:
(a)The court executive officer, in actions on claims against a superior court or a judge thereof.
(b)The Clerk/Executive Officer of the Court of Appeal, in actions on claims against a court of appeal or a judge thereof.
(c)The Clerk/Executive Officer of the Supreme Court, in actions on claims against the Supreme Court or a judge thereof.
(d)The Administrative Director of the Judicial Council, in actions on claims against the Judicial Council or the Administrative Office of the Courts.