Tenn. Code Ann. § 11-21-111

The county conservation board shall be considered the parks and recreation providing agency for certain small cities and towns excluded from the general application of chapter 24 of this title. Such boards shall work cooperatively with these cities and towns. A small city or town desiring parks and recreation services shall enter into an agreement pursuant to § 11-24-105 with the board. The board shall develop and maintain parks and recreation facilities and programs within the jurisdiction of such small city or town according to this agreement.