Tennessee Code Title 6. Cities and Towns § 6-53-101

(a)(1) The county election commission of each county shall hold, upon no less than one hundred twenty (120) days' notice, an election for mayor and aldermen, and other officers in any incorporated town, village, or city, according to law, who, when elected, shall have all the powers conferred on them by their respective charters of incorporation, and until their successors are elected and qualified. If the municipal corporation includes territory in two (2) or more counties, such election and all other municipal elections of such municipal corporation shall be called and conducted by the county election commission of the county in which the town seat or city hall is located.

(2) Any municipality that has changed the term of office of any elected official shall file a certified copy of the ordinance changing such term of office with the appropriate county election commission at least seven (7) days prior to the deadline for filing the notice of election pursuant to § 2-12-111.

(b)(1) In municipalities with a population of one hundred twenty-five (125) or less, according to the 1960 census or any subsequent federal census, notice of municipal elections may be made by posting in five (5) public places in the municipality a proclamation of the legislative body of the town holding the municipal election; provided, that the notice shall be on heavy paper or cardboard at least eight inches (8″) long and five inches (5″) wide, and shall be clearly legible.

(2) The notice provided for such towns may be made in lieu of all other notices required by law for municipal elections; provided, that the elections relate only to officers of the municipality.