Cal. Insurance Code § 675.5

(a) In addition to any policy of insurance specified in Section 675, this chapter shall apply to policies of commercial insurance issued or issued for delivery in this state which are issued and take effect or are renewed on or after January 1, 1987. (b) As used in this section, commercial insurance means commercial multiperil, commercial property, commercial liability, commercial special multiperil, commercial comprehensive multiperil, errors and omissions liability, and professional liability insurance, and any other insurance not included in subdivision (d) which covers any of the following contingencies: (1) Loss of or damage to real property used or owned by a commercial or industrial enterprise. (2) Loss of or damage to personal property, except personally owned motor vehicles, used in the conduct of a commercial or industrial enterprise. (3) Legal liability of any person for loss of, damage to, or injury to persons or property, arising from the conduct of a commercial or industrial enterprise. (c) As used in this section, the term commercial or industrial enterprise includes a business operated for profit, a professional practice, a nonprofit organization, or a governmental entity. (d) As used in this section, the term commercial insurance does not include any of the following: (1) Workers’ compensation insurance. (2) Insurance provided pursuant to the California FAIR plan or the California automobile assigned risk plan. (3) Disability insurance. (4) Automobile insurance covered by Section 660 and property insurance covered by Section 675. (5) Ocean marine insurance. (6) Fidelity and surety insurance. (7) Surplus line insurance, which is nonadmitted insurance as defined in subdivision (m) of Section 1760.1. (8) Reinsurance. (9) Any insurance, other than professional liability insurance for malpractice, errors, or omissions, for which premiums are determined on a retrospective rating basis. (10) Nuclear liability insurance. (11) Nuclear property insurance.