Tenn. Code Ann. § 7-90-121

This chapter shall not be construed as a restriction or limitation upon any powers that an authority, as a public corporation, might otherwise have under any laws of this state, but shall be construed as cumulative of any such powers. No proceedings, notice or approval shall be required for the organization of the authority or the issuance of any bonds or any instrument as security for the bonds, except as provided in this chapter, any other law to the contrary notwithstanding; provided, that nothing in this chapter shall be construed to deprive the state and its governmental subdivisions of their respective police powers over properties of the authority, or to impair any power over properties of the authority of any official or agency of the state and its governmental subdivisions that may be otherwise provided by law. Projects may be acquired, purchased, constructed, reconstructed, improved, bettered and extended, and bonds may be issued under this chapter for such purposes, notwithstanding that any other general, special or local law may provide for the acquisition, purchase, construction, reconstruction, improvement, betterment and extension of a like project, or the issuance of bonds for like purposes, and without regard to the requirements, restrictions, limitations or other provisions contained in any other general, special or local law.