Tennessee Code Title 68. Health, Safety and Environmental Protection § 68-2-609

(1) The quarantine of a place or person, if the county health officer finds that quarantine is necessary to protect the public health from an epidemic;

(2) The closure of a public establishment, facility, or building, if the county health officer finds unsanitary conditions of such a nature and extent to significantly threaten the public health. For purposes of this subdivision (a)(2), “unsanitary” does not mean free of agents of infection;

(3) The closure of a public establishment, facility, or building, if the county health officer is otherwise authorized by law to take that action; or

(4) Except as provided in title 14 and § 68-2-611, rules as are necessary or appropriate to protect the general health and safety of the county.