Tenn. Code Ann. § 9-21-108

All actions required or authorized to be taken under this chapter by the governing body of a local government may be by resolution. The resolution may be adopted at the meeting, regular or special, of the governing body at which the resolution is introduced, and shall take effect immediately upon adoption. Except as otherwise provided in this chapter, no resolution under this chapter need be published or posted, nor shall any such resolution be subject to veto by the chief executive officer or presiding officer of the governing body, nor shall any such resolution require for its passage more than a majority vote of all the members of the governing body then in office. The resolution may delegate authority to the chief executive officer of the local government to sell notes or bonds under this chapter.