Cal. Government Code § 8670.37.58

(a) A nontank vessel shall not enter waters of the state unless the nontank vessel owner or operator has provided to the administrator evidence of financial responsibility that demonstrates, to the administrator’s satisfaction, the ability to pay at least three hundred million dollars ($300,000,000) to cover damages caused by a spill, and the owner or operator of the nontank vessel has obtained a certificate of financial responsibility from the administrator for the nontank vessel. (b) Notwithstanding subdivision (a), the administrator may establish a lower standard of financial responsibility for a nontank vessel that has a carrying capacity of 6,500 barrels of oil or less, or for a nontank vessel that is owned and operated by California or a federal agency and has a carrying capacity of 7,500 barrels of oil or less. The standard shall be based upon the quantity of oil that can be carried by the nontank vessel and the risk of an oil spill into waters of the state. The administrator shall not set a standard that is less than the expected cleanup costs and damages from an oil spill into waters of the state. (c) A nontank vessel fee shall be submitted along with the application for the certificate, as required pursuant to Section 8670.41. (d) The administrator may adopt regulations to implement this section.