Cal. Pub. Util. Code § 2115

Whenever the commission determines that a railroad corporation has violated any order of the commission concerning the adequacy, condition, or safety of the corporation’s cars or tracks or any related fixture or appliance, the commission may impose upon the corporation a fine of not exceeding two thousand dollars ($2,000) for each violation or a fine of not exceeding two hundred dollars ($200) for each day that a violation continues uncorrected. The commission may assess interest upon any fine imposed, which shall commence upon the day the payment of the fine is delinquent.