Cal. Public Utilities Code § 1763

(a) No temporary stay shall be granted by the Supreme Court or court of appeal unless it clearly appears from specific facts shown by the verified petition that immediate and irreparable injury, loss, or damage will result to the applicant before notice can be served and hearing had on a motion for a stay as provided in this article. (b) Every temporary stay shall be endorsed with the date and hour of issuance, shall be forthwith filed in the clerk’s office and entered of record, shall define the injury and state why it appears to be irreparable and why the order was granted without notice, and shall by its terms expire within a time after entry not to exceed 10 days as the court may fix, unless within the time so fixed the order is extended for a like period for good cause shown and the reasons for the extension entered of record. (c) In case a temporary stay is granted without notice, the matter of the issuance of a stay shall be set down for hearing at the earliest possible time, and when it comes up for hearing the party obtaining the temporary stay shall proceed with the application for a stay. If the party does not so proceed, the court shall dissolve the temporary stay.