California Code, Business and Professions Code - BPC § 18897.87

(a) A policy or policies of insurance against liability imposed on or against the agent by law for damages arising out of claims in an amount for each claim of at least one hundred thousand dollars ($100,000).

(b) In trust or bank escrow, cash, bank certificates of deposit, United States Treasury obligations, bank letters of credit, or bonds of insurance companies as security for payment of liabilities imposed by law for damages arising out of all claims in an amount of at least one hundred thousand dollars ($100,000).