Tennessee Code Title 13. Public Planning and Housing § 13-4-105

Nothing contained in parts 1 and 2 of this chapter shall be deemed to modify or supplant any provision of any special or private statute providing for a municipal planning commission, and the provisions of any such statute relating to the organization and powers of such commission and all other provisions of any such special or private statutes shall remain in full force and effect, but, insofar as parts 1 and 2 of this chapter grant powers to municipal planning commissions not contained in such special statute, the planning commission created and acting under the special statute shall be deemed to have the additional powers granted in parts 1 and 2 of this chapter; provided, that § 13-4-104, regarding the legal status of the municipal plan, shall apply to every municipality with a planning commission, whether such commission shall have been established under a special or private act or under this chapter.