Tennessee Code Title 68. Health, Safety and Environmental Protection § 68-104-209

The fire marshal, upon application by a certified operator, or equivalent, from another state, may allow the operator to perform displays in this state without submitting to the written examination, if the fire marshal determines that the other state's laws allow certified operators from Tennessee to perform displays in that state and the other state's laws set standards for operators substantially equivalent to those in this state. All other applicable certification provisions apply to the out-of-state operator, and applicants for whom the written examination is waived must comply with all other requirements, including continuing education requirements.