Cal. Bus. & Prof. Code § 7599.50

No licensee shall willfully depart from or disregard any plans or specifications, or in the absence of specific requirements, within the plans or specifications of accepted trade standards for good and workerlike construction in any material respect and prejudicial to another, without consent of the owner or his or her duly authorized representative, and without the consent of the person entitled to have the particular installation of alarm system substantially completed in accordance with such plans and specifications. A violation of this section may result in a fine of one hundred dollars ($100) for the first violation and five hundred dollars ($500) for each subsequent violation.