Tennessee Code Title 39. Criminal Offenses § 39-17-427

(1) The person lawfully possessed the controlled substance as otherwise authorized by this part and title 53, chapter 11, parts 3 and 4; or

(2) The only cannabis with a delta-9 tetrahydrocannabinol (THC) concentration greater than three-tenths of one percent (0.3%) on a dry weight basis in the person's possession was hemp concentrate, as defined in § 43-27-101, and the person was transporting the hemp concentrate within this state from the location where the hemp concentrate was produced to a location where the hemp concentrate was to be reconstituted into consumer products with a delta-9 THC concentration of not more than three-tenths of one percent (0.3%); provided, however, that the person transporting the hemp concentrate under this subdivision (2) maintained proof of a grower's license from the department of agriculture in the transport vehicle.