Cal. Education Code § 15251

(a) When collected, all taxes levied shall be paid into the county treasury of the county whose superintendent of schools has jurisdiction over the school district on behalf of which the tax was levied, to the credit of the interest and sinking fund of the school district, or community college district as designated by the California Community Colleges Budget and Accounting Manual, and shall be used for the payment of the principal and interest of the bonds and for no other purpose. (b) Bonds issued and sold pursuant to this chapter shall be secured by a statutory lien on all revenues received pursuant to the levy and collection of the tax. The lien shall automatically attach without further action or authorization by the governing board of the school district or community college district. The lien shall be valid and binding from the time the bonds are executed and delivered. The revenues received pursuant to the levy and collection of the tax shall be immediately subject to the lien, and the lien shall automatically attach to the revenues and be effective, binding, and enforceable against the school district or community college district, its successors, transferees, and creditors, and all others asserting rights therein, irrespective of whether those parties have notice of the lien and without the need for any physical delivery, recordation, filing, or further act.