California Code, Revenue and Taxation Code - RTC § 2261.2

Whenever a county board of supervisors adopts the provisions of Sections 42649 and 85265.5 of the Education Code and thereby transfers certain duties of the county auditor to the county superintendent of schools as provided therein, the maximum tax rate of the county shall, commencing with the fiscal year following the effective date of such transfer, be decreased by an amount which, if levied in such fiscal year, would produce annual revenues equivalent to the expenditures from the county general fund used to provide such services of the county auditor in the fiscal year immediately prior to the date of the transfer of functions to the county superintendent of schools.