Bus. & Prof. Code, § 19164

The bureau may, by regulation, establish insulation material standards governing the quality of all insulation material sold or installed within this state, including those properties that affect the safety and thermal performance of insulation material during application and in the use intended. The standards shall specify the initial performance of the insulation material and the performance expected during the design life of the insulation material. Until the bureau has adopted these regulations, the regulations of the State Energy Resources Conservation and Development Commission in effect on the effective date of this section relating to those standards shall remain in full force and effect. However, wherever those regulations specify that the commission shall perform an act, the bureau instead shall perform the act.

Prior to establishing the standards and procedures required by this chapter, the bureau shall conduct at least two public hearings, and shall invite the State Energy Resources Conservation and Development Commission, the State Fire Marshal, manufacturers, distributors, and licensed installers of insulation materials, and appropriate members of the public to participate in the hearings. Immediately upon adoption of the standards and procedures, the bureau shall provide a copy of the standards to the State Energy Resources Conservation and Development Commission, and the Contractors State License Board. Within 30 days after receipt of the bureau’s standards, the Contractors State License Board shall notify all state licensed contractors who install insulation of the standards.

Insulation standards adopted by the bureau, pursuant to this section, and by the State Energy Resources Conservation and Development Commission, pursuant to Section 25402 of the Public Resources Code, which are building standards, as defined in Section 25488.5 of the Public Resources Code, shall be submitted to the California Building Standards Commission for approval pursuant to, and are governed by, the California Building Standards Law (Part 2.5 (commencing with Section 18901) of Division 13 of the Health and Safety Code). The building standards adopted by the bureau and published in the California Building Standards Code shall comply with, and be enforced as provided in, this section.