Bus. & Prof. Code, § 7127

(a) (1) If an employer subject to licensure under this chapter has failed to secure the payment of compensation as required by Section 3700 of the Labor Code, and whether that employer is or is not licensed under this chapter, the registrar may, in addition to any other administrative remedy, issue and serve on that employer a stop order prohibiting the use of employee labor. The stop order shall become effective immediately upon service. An employee affected by the work stoppage shall be paid by the employer for his or her time lost, not exceeding 10 days, pending compliance by the employer.

(2) Failure of any employer, officer, or any person having direction, management, or control of any place of employment or of employees to observe a stop order issued and served upon him or her pursuant to this section is a misdemeanor punishable by imprisonment in the county jail not exceeding 60 days or by a fine not exceeding ten thousand dollars ($10,000), or both.

(b) An employer who is subject to this section may protest the stop order by making and filing with the registrar a written request for a hearing within 20 days after service of the stop order. The hearing shall be held within five days from the date of filing the request. The registrar shall notify the employer of the time and place of the hearing by mail. At the conclusion of the hearing, the stop order shall be immediately affirmed or dismissed, and within 24 hours thereafter the registrar shall issue and serve on all parties to the hearing by registered or certified mail a written notice of findings and findings. A writ of mandate may be taken from the findings to the appropriate superior court. Such writ must be taken within 45 days after the mailing of the notice of findings and findings.