Cal. Educ. Code § 15795
(a) When, after any application is filed, the applicant district is annexed to, or, by change of boundaries or otherwise, is included in whole or in part in another district or districts, the superintendent of schools of the county having jurisdiction over the applicant district shall, within 10 days after the effective date of the annexation, inclusion, or change of boundaries, file a certificate with the board, in writing, in the form that the board shall prescribe, setting forth each of the following:
(b) The board shall, upon receiving the appropriate certificate from a county superintendent of schools as provided herein, promptly notify the Controller, in writing, of each of the following: