California Codes, Civil Code - CIV, Division 3 — Obligations, Part 4 — Obligations Arising from Particular Transactions, Title 6 — Service, Chapter 3 — Service Without Employment, Article 2 — Duty to Prospective Purchaser of Real Property, Section 2079.9

(a) If a Commercial Property Owner’s Guide to Earthquake Safety described in Section 10147 of the Business and Professions Code is delivered to a buyer in connection with the sale of real property, including property specified in Section 1102 or under Chapter 7.5 (commencing with Section 2621) of Division 2 of the Public Resources Code, a seller or broker is not required to provide additional information concerning, and the information shall be deemed to be adequate to inform the buyer regarding, geologic and seismic hazards, in general, as described in the guide, that may affect real property and mitigating measures that the buyer or seller might consider.

(b) Notwithstanding subdivision (a), nothing in this section increases or decreases the duties, if any, of sellers, their real estate brokers or agents under this article or under Chapter 7.5 (commencing with Section 2621) or Chapter 7.8 (commencing with Section 2690) of Division 2 of the Public Resources Code, or alters the duty of a seller, agent, or broker to disclose the existence of known hazards on or affecting the real property.