Tennessee Code Title 7. Consolidated Governments and Local Governmental Functions and Entities § 7-36-103

(a) If the governing body of an associated municipality, by appropriate resolution, duly adopted by a two-thirds ( 2/3 ) or greater vote, finds and determines that it is wise, expedient, necessary, or advisable that an authority be formed, it shall authorize the mayor of the associated municipality or other person to proceed to form an authority, and shall approve the form of certificate of incorporation proposed to be used in organizing the authority, and then the mayor or other person authorized by the resolution shall execute, acknowledge, and file a certificate of incorporation for the corporation as provided in this chapter.

(b) No authority may be formed pursuant to this chapter unless the governing body has adopted a resolution as provided in this section.