Cal. CIV § 2079.10

(a) If the informational booklet published pursuant to Section 25402.9 of the Public Resources Code, concerning the statewide home energy rating program adopted pursuant to Section 25942 of the Public Resources Code, is delivered to a buyer in connection with the sale of real property, including, but not limited to, property specified in Section 1102, manufactured homes as defined in Section 18007 of the Health and Safety Code, and property subject to Chapter 7.5 (commencing with Section 2621) of Division 2 of the Public Resources Code, the seller or broker is not required to provide information additional to that contained in the booklet concerning home energy ratings, and the information in the booklet shall be deemed to be adequate to inform the buyer about the existence of a statewide home energy rating program.

(b) Notwithstanding subdivision (a), nothing in this section alters any existing duty of the seller or broker under any other law including, but not limited to, the duties of a seller or broker under this article, Article 1.5 (commencing with Section 1102) of Chapter 2 of Title 4 of Part 4 of Division 2 of the Civil Code, or Chapter 7.5 (commencing with Section 2621) of Division 2 of the Public Resources Code, to disclose information concerning the existence of a home energy rating program affecting the real property.

(c) If the informational booklet or materials described in Section 375.5 of the Water Code concerning water conservation and water conservation programs are delivered to a buyer in connection with the sale of real property, including property described in subdivision (a), the seller or broker is not required to provide information concerning water conservation and water conservation programs that is additional to that contained in the booklet or materials, and the information in the booklet or materials shall be deemed to be adequate to inform the buyer about water conservation and water conservation programs.