Tenn. Code § 7-84-705
This part provides independent authority, separate and apart from chapters 32 and 33 of this title, and parts 1-6 of this chapter, for the establishment and governance of an infrastructure development district, and constitutes an alternative method of establishing and governing such a district. This part does not affect the operation and effect of chapters 32 and 33 of this title, and parts 1-6 of this chapter, which continue in full force and effect as separate and independent authority for the establishment and governance of a central business improvement or infrastructure development district; provided, however, that notwithstanding another law to the contrary, a central business improvement must not overlap any area within an infrastructure development district created by a municipality pursuant to this part.
T.C.A. § 7-84-705