Tenn. Code Ann. § 68-104-212: Permit fee.

The fire marshal shall collect a permit fee from or on behalf of the sponsor for each event at which there will be a display, which may include all or any of the types of displays regulated by this part, in an amount not to exceed fifty dollars ($50.00) per permit. As part of the application for a permit, the fire marshal shall verify that the required insurance has been obtained and is in force for the event, and shall deny the application if it is not. A permittee, which may include an exhibitor, sponsor or operator that is conducting multiple displays that are essentially identical at a single location, may be issued a multiple display permit. The fire marshal shall set by rule and collect a multiple display permit fee from or on behalf of the sponsor of an event, not to exceed four hundred dollars ($400) per location. A multiple display permit expires one (1) year after issuance.