Tenn. Code Ann. § 49-9-1404

The operations of entities described in § 49-9-1402(a) shall be audited annually by an independent certified public accountant, and copies of the audit shall be furnished to the comptroller of the treasury. An entity described in § 49-9-1402(a) shall also be subject to audit by the comptroller of the treasury, but nothing in this section shall be construed to mean that the entity is an agency, department, instrumentality, political subdivision or other arm of the state.