California Code, Labor Code - LAB § 7331

The division may make and enforce such safety orders and rules as it considers necessary and proper to carry into effect the purposes and provisions of this chapter.

The division shall give notice to the owner or person entitled to possession of any building that is existing in violation of this chapter or of any rules issued under this chapter.  Failure of the person so notified to comply with this chapter and rules issued under it, within 15 days, shall be authority for the division to proceed against such person as authorized in this chapter.