Tennessee Code Title 9. Public Finances § 9-21-215

(a) At any time before delivering any general obligation bonds to be issued pursuant to this part and part 1 of this chapter, the governing body shall adopt a resolution (herein called the “tax resolution”) which shall recite in substance that adequate provision will be made for raising annually by tax upon the taxable property in the local government or a portion of the local government, if applicable, of a sum sufficient to pay the principal of and interest on the general obligation bonds as the same shall become due.

(b) A tax sufficient to pay when due the principal of and interest on the general obligation bonds shall be levied annually and assessed, collected and paid, in like manner with the other taxes of the local government and shall be in addition to all other taxes authorized or limited by law. It is the duty of the governing body to include in the annual levy a tax sufficient to pay the principal of and interest on the general obligation bonds as the same become due; provided, that if the bonds are payable from taxes and additionally secured by a pledge of revenues, and if the tax resolution shall so provide, then the tax to be levied and assessed by the governing body may be reduced by such amount and under such conditions as may be determined in the tax resolution. When any part of the principal of or interest on any general obligation bonds issued by any local government pursuant to this part and part 1 of this chapter, not payable exclusively from the revenues of a public works project, are not paid when due, there shall be levied and assessed by the governing body and collected by the proper collecting officers at the first assessment, levy and collection of taxes in the local government after such omission or failure, a tax sufficient to pay the same.

(c) If the general obligation bonds are issued to finance the cost of a public works project pursuant to a plan of improvement for a central business improvement district created pursuant to the Central Business Improvement District Act of 1971, compiled in title 7, chapter 84, the local government may, nevertheless, proceed to levy and collect assessments pursuant to the Central Business Improvement District Act; and the proceeds of such assessments when collected, other than amounts required to pay the principal of and interest on the bonds, shall be paid into the treasury of the local government and used to reimburse the treasury for any amounts paid out of the treasury to pay the principal of and interest on such bonds; and such moneys reimbursed to the treasury may be used, under the direction of the governing body of the local government, for any lawful corporate purpose for which taxes may be legally levied and collected.