Cal. Sts. & High. Code § 8806

Notwithstanding Section 8805, if a city has advanced available funds either in performance of its obligations in proceedings wherein the assessment was levied prior to September 17, 1986, or under subdivision (a) of Section 8769, the city shall, from time to time when due, pay and transfer into the redemption fund the amount of any future delinquent installments of the assessment and interest thereon pending redemption, and no redemption shall be made until any subsequent payments, with interest and penalties, are paid.