For the purposes of Section 23817.5, beginning with the year 2000, population shall be determined by the most recent United States decennial census or a single subsequent census between United States decennial censuses validated by the Demographic Research Unit of the Department of Finance five years after a United States decennial census.

(Amended by Stats. 2019, Ch. 29, Sec. 38. (SB 82) Effective June 27, 2019.)