Tennessee Code Title 68. Health, Safety and Environmental Protection § 68-29-106

(a) The board is authorized to require the inspection of the premises and operations of all medical laboratories subject to licensure under this chapter, for the purpose of studying and evaluating the operation, supervision, and procedures of the facilities, and to determine their effect on the health and safety of the people of this state.  For this purpose, authorized personnel of the department have the right to enter upon such premises during working hours.  Any person obstructing such entry shall be in violation of this chapter.

(b) Notwithstanding subsection (a), a rural hospital-based laboratory shall maintain, in addition to a license issued by the board, at least one (1) of the following:

(c) Hospital accreditation may be obtained from the health facilities commission, the department of health, the Joint Commission on Accreditation of Healthcare Organizations (JCAHO), DNV Healthcare, or another organization that is authorized to survey hospitals for medicare enrollment purposes by the United States department of health and human services to comply with a condition of participation in the medicare program in accordance with current requirements of the medicare program.