(a) The commissioners court or municipal authority may impose a tax to pay the debt incurred under Section 571.002. The rate of the tax in any year may not exceed 50 cents on each $100 of the taxable value of property taxable by the county or municipality.
(b) The commissioners court or municipal authority may issue bonds under this subchapter for the payment of the debt, but, if revenue from the tax will not pay off the debt within five years, the commissioners court or municipal authority shall issue bonds for the payment of the debt.