Cal. R. 3.1150
A party requesting a preliminary injunction may give notice of the request to the opposing or responding party either by serving a noticed motion under Code of Civil Procedure section 1005 or by obtaining and serving an order to show cause (OSC). An OSC must be used when a temporary restraining order (TRO) is sought, or if the party against whom the preliminary injunction is sought has not appeared in the action. If the responding party has not appeared, the OSC must be served in the same manner as a summons and complaint.
If the action is initiated the same day a TRO or an OSC is sought, the complaint must be filed first. The moving party must provide a file-stamped copy of the complaint to the judge who will hear the application. If an application for a TRO or an OSC is made in an existing case, the moving party must request that the court file be made available to the judge hearing the application.
The OSC and TRO must be stated separately, with the OSC stated first. The restraining language sought in an OSC and a TRO must be separately stated in the OSC and the TRO and may not be incorporated by reference. The OSC must describe the injunction to be sought at the hearing. The TRO must describe the activities to be enjoined pending the hearing. A proposed OSC must contain blank spaces for the time and manner of service on responding parties, the date on which the proof of service must be delivered to the court hearing the OSC, a briefing schedule, and, if applicable, the expiration date of the TRO.
The moving party or counsel for the moving party must be personally present when the request for a TRO is made.
An application for a TRO or an OSC must state whether there has been any previous application for similar relief and, if so, the result of the application.
Notwithstanding rule 3.1312, whenever an application for a preliminary injunction is granted, a proposed order must be presented to the judge for signature, with an undertaking in the amount ordered, within one court day after the granting of the application or within the time ordered. Unless otherwise ordered, any restraining order previously granted remains in effect during the time allowed for presentation for signature of the order of injunction and undertaking. If the proposed order and the undertaking required are not presented within the time allowed, the TRO may be vacated without notice. All bonds and undertakings must comply with rule 3.1130.
Applications for ex parte temporary restraining orders are governed by the ex parte rules in chapter 4 of this division.
Cal. R. Ct. 3.1150