Cal. Lab. Code § 1158
Whenever an order of the board made pursuant to Section 1160.3 is based in whole or in part upon the facts certified following an investigation pursuant to Sections 1156.3 to 1157.2, inclusive, and there is a petition for review of the order, the certification and the record of the investigation shall be included in the transcript of the entire record required to be filed under Section 1160.8 and thereupon the decree of the court enforcing, modifying, or setting aside in whole or in part the order of the board shall be made and entered upon the pleadings, testimony, and proceedings set forth in the transcript. The filing of a petition for review described in this section shall not be grounds for a stay of proceedings conducted pursuant to Chapter 6.5 (commencing with Section 1164).
Ca. Lab. Code § 1158