Cal. Fin. Code § 21201.5

A pledgor may request, and a pawnbroker may consent to, a new loan to take effect upon or at any time after the expiration of the loan period stated in the original loan contract delivered to the pledgor under Section 21201. The pledgor shall pay in cash or another form acceptable to the pawnbroker all of the charges and interest due under the original loan, and the remaining unpaid balance of the actual amount borrowed under the original loan shall be debited to the new loan on which the same article or articles are pledged. The loan to which the debit is applied shall be processed as a new loan and shall be deemed to be a new loan subject to loan origination fees, storage fees, and other fees permitted by this chapter, when applicable. The new loan contract required by Section 21201 shall disclose the amount of the original loan that is debited to the new loan.