California Code, Harbors and Navigation Code - HNC § 442

Upon reasonable notice from the owners, agents, charterers, or operators, a pilot shall provide insurance covering the vessel, its owners, agents, charterers, or operators from the consequences of negligence of the pilot supplying the pilotage services, the pilot's employer, or other employees of the pilot's employer on a trip insurance basis with limits of coverage established by agreement between the pilot and the party requesting the insurance, the premium of which will be assessed in addition to the rates and charges for the pilotage services.