Cal. Health and Safety Code § 18933

(a) The commission may give affected state agencies reasonable time, as specified by the commission, to adopt amendments to building standards submitted for approval. If the agencies do not do so within the reasonable time as specified, the commission shall convene a committee composed of a representative from each of the agencies affected and any other qualified persons who are selected by the commission. This committee shall prepare a recommendation for commission action upon the building standards. Upon the recommendation, or if the committee does not prepare a recommendation and deliver it to the commission within 30 days after being appointed, the commission may rewrite, edit, amend, or adopt, and approve the building standards consistent with the intent of this part and in accordance with the Administrative Procedure Act and the criteria for approval provided in Section 18930. It shall not, however, be required that hearings or other administrative procedure be duplicated on unchanged portions of building standards previously adopted and approved by the commission. (b) (1) Pursuant to Section 18943, the commission, after publication of building standards pursuant to Section 18941 in the triennial edition of the code, shall recommend to affected state agencies the repeal of building standards of those state agencies which were adopted, or are, in conflict with other published standards in the code. If the state agencies do not repeal the building standards within a reasonable time as specified by the commission, the commission shall convene a committee composed of a representative of each of the agencies affected and other qualified persons selected by the commission to prepare a recommendation for commission action on the building standards. (2) Upon the recommendation, or if the committee does not prepare a recommendation and deliver it to the commission within 30 days after being appointed, the commission may repeal the building standards, in accordance with the Administrative Procedure Act. This subdivision shall not supersede Section 18943, but, instead, provides the procedure for effecting that section.