Cal. Rev. & Tax. Code § 183

If the tax collector of an eligible county has certified to the Director of Finance the information specified in Section 182, the Director of Finance shall determine an amount for payment to the county which is equal to the amount of the second installment of property taxes on the regular secured roll for the 1985–86 fiscal year which is not paid by 5 p.m. on April 10, 1986, less a percentage of that amount which is equal to the average delinquency rate for property taxes on the regular secured roll for the immediately preceding three fiscal years. The Director of Finance shall certify the amount so determined to the Controller for allocation to the county. Upon receipt of certification by the Director of Finance, the Controller shall make the appropriate allocation to the county within 10 working days thereafter.