Cal. Ed. Code § 15141
When authorized by the governing board of a school district or a community college district, bonds of a school district or a community college district may be offered for sale as a group by the board of supervisors of the county, the county superintendent of schools, or the governing board of a community college district, which has jurisdiction over the district, at a time determined by the board of supervisors following receipt of a resolution duly adopted by the governing board of the school district or community college district. The resolution shall prescribe the total amount of bonds to be sold. The resolution may also prescribe the maximum acceptable interest rate, not to exceed 8 percent, and the time or times when the whole or any part of the principal of the bonds shall be payable, which shall not be more than 25 years from the date of the bonds. Bidders shall be required to bid a lump-sum bid on all bonds as a group. If bids satisfactory to the governing board of each school district included in the group are received, the bonds offered for sale shall be awarded to the bidder whose bid will result in the lowest net interest cost for the group or for the bonds of any district included within the group. Bonds shall be issued and sold in the name of each school district or a community college district in the same manner as provided in this chapter.
Ca. Educ. Code § 15141