Cal. Educ. Code § 16206

In the event that the governing board of a school district determines, subject to the approval of the county superintendent of schools, that the amounts collected within the district by special taxes levied pursuant to Section 16204 or Section 16205 and credited to the district in the county school building aid fund are substantially in excess of amounts required of the district for purposes of Section 16207 for the ensuing three-year period, the county superintendent may order the payment to the district from the county school building aid fund of so much of the excess moneys that he or she may deem appropriate.