Notwithstanding ORS 334.240 and 334.285, each education service district shall ascertain and levy annually, in addition to all other taxes, a direct ad valorem tax on all taxable property in the education service district sufficient to pay the maturing interest and principal of all education service district bonds promptly when and as the payments become due. The board in each year shall include the taxes in the education service district budget for that year.
ORS 334.293