Tennessee Code Title 68. Health, Safety and Environmental Protection § 68-9-204

(a) No one but the commissioner, a state, municipal, district or county health officer or such person's duly authorized representative shall establish and terminate isolation or quarantine of persons with infectious tuberculosis.

(b) Isolation or quarantine may be established when clinical signs of the disease are shown to be present with the aid of such laboratory examination for diagnosis as the health officer may deem necessary, or isolation or quarantine may be established when tuberculosis is shown to be present in a communicable stage.

(c) The release of a person from isolation or quarantine for tuberculosis shall be made when, in the judgment of the commissioner or the health officer, the disease is no longer communicable.

(d) It is the duty of the commissioner to set up such clinical and laboratory criteria as may be necessary for the guidance of health officers in the performance of their duties as outlined in this section.