Cal. Health & Safety Code § 12610

Notwithstanding any of the provisions of the law which may require a certificate of insurance as a condition for a permit to hold a general, special, or limited public display, any person, firm, or corporation applying for a public display license shall furnish to the State Fire Marshal a policy of public liability and property damage insurance, with limits, as determined by the State Fire Marshal, which are reasonably necessary to cover possible liability for damage to property and bodily injury or damage to persons which may result from, or be caused by, the public display of fireworks, or any negligence on the part of the licensee or his or her or its agents, servants, employees, or subcontractors presenting the public display.