Tennessee Code Title 5. Counties § 5-3-108

(b)(1) In the event the combined number of magisterial or civil districts in any absorbing county exceeds the constitutional limitation, namely twenty-five (25), the county legislative body of the county shall, in accordance with §§ 5-1-111 and 5-1-112, at its first regular meeting following the consolidation, redistrict the county to provide not more than the constitutional number of magisterial or civil districts.

(2) In the event the county fails so to act, the state consolidation committee is empowered, authorized and directed so to redistrict the county.