California Code, Streets and Highways Code - SHC § 6449

Whenever a school district acquires property subject to a bond or bonds issued under the terms of this division for unpaid assessments against said property, the district may include in its annual tax levy, in addition to moneys for all other purposes, an amount sufficient to pay the annual payments of principal and interest due on said bond or bonds.  Said tax levy may be made notwithstanding that the said tax levy exceeds the maximum tax rate which may otherwise be imposed by law.  No school district shall levy the tax authorized by this section for a period in excess of five years with respect to a particular parcel of property.