Tenn. Code Ann. § 7-41-109

Prior to the issuance of any bonds to finance the cost of an economic development project that will be repaid in whole or part from apportionments under this chapter, the municipality or industrial development corporation issuing the bonds shall submit a proposed debt amortization schedule for the bonds to the commissioner for approval. The schedule must show the anticipated contribution to be made to the annual debt service for the bonds from the apportionment of sales and use taxes pursuant to this chapter and all other sources. After the date of issuance of the bonds, the municipality shall continue to contribute each year thereafter until the bonds are retired or a sufficient sinking fund has been established for their retirement.