California Code, Education Code - EDC § 15303

(a) This chapter shall not be operative in a county or counties until the board of supervisors of the county in which the county superintendent of schools having jurisdiction over the school district or community college district in which a proposed school facilities improvement district is located, and the board of supervisors of any county in which a proposed school facilities improvement district is located, by resolution adopted by a majority vote of each affected board of supervisors, makes this chapter applicable in the county or counties.  The resolution may make this chapter operative in the county generally, or to one or more school districts or community college districts.

(b) A board of supervisors adopting a resolution pursuant to subdivision (a) shall file that resolution with the California Debt and Investment Advisory Commission established pursuant to Section 8855 of the Government Code.