Cal. R. 3.529
When a petition for coordination is granted or denied, the petitioner must promptly file the order in each included action, serve it on each party appearing in an included action, and submit it to the Chair of the Judicial Council.
When an order granting coordination is filed in an included action, all further proceedings in that action are automatically stayed, except as directed by the coordination trial judge or by the coordination motion judge under (c). The stay does not preclude the court in which the included action is pending from accepting and filing papers with proof of submission of a copy to the assigned judge or from exercising jurisdiction over any severable claim that has not been ordered coordinated.
After a petition for coordination has been granted and before a coordination trial judge has been assigned, the coordination motion judge may for good cause make any appropriate order as the ends of justice may require but may not commence a trial or enter judgment in any included action. Good cause includes a showing of an urgent need for judicial action to preserve the rights of a party pending assignment of a coordination trial judge.
The authority of a coordination motion judge over an included action terminates when an order denying a petition for coordination is filed in the included action and served on the parties to the action. A stay ordered by the coordination motion judge terminates 10 days after the order denying coordination is filed.
Cal. R. Ct. 3.529