Tenn. Code Ann. § 68-104-106

The issuance of the permits required in this chapter does not replace or relieve any person of state, county or municipal privilege licenses as provided by law. Before the issuance of any state and county licenses, the county clerk shall require each applicant for a fireworks license to exhibit a permit or furnish other definite and satisfactory evidence that a proper permit has been issued to the applicant by the state fire marshal and that the permit is current and valid.